PSU Profiles
Last Name

Maria Baker

InstitutionCollege of Medicine
Address500 University Drive Hershey PA 17033
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    Professor of Medicine


    Ph.D., Penn State University - State College (1991)

    M.S., University of Pittsburgh (1985)


    Dr. Maria J. Baker received her Master’s degree in Genetic Counseling from the University of Pittsburgh’s Graduate School of Public Health in 1985 and her Doctoral degree in Genetics from the Penn State University College of Medicine in 1991. She is a diplomat of both the American Board of Medical Genetics and the American Board of Genetic Counseling with dual certification as a Master’s trained genetic counselor and a Ph.D. medical geneticist.

    Dr. Baker developed and coordinates the Penn State Hershey Cancer Genetics Program. She provides genetic counseling services to individuals who are concerned about a personal and/or family history of cancer. Clinical, as well as research-based, genetic testing is offered when appropriate based on the personal and/or family history of cancer. In addition, various cancer risk management strategies are discussed, including enhanced surveillance, positive lifestyle changes, chemoprevention, as well as the option of prophylactic surgery, to manage one’s personal risk for cancer. Dr. Baker also provides lectures to medical students, graduate students, and various physician and nurse professionals, as well as numerous organizations within the community.

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Baker MJ, Goldstein AM, Gordon PL, Harbaugh KS, Mackley HB, Glantz MJ, Drabick JJ. An interstitial deletion within 9p21.3 and extending beyond CDKN2A predisposes to melanoma, neural system tumours and possible haematological malignancies. J Med Genet. 2016 Jan 21. PMID: 26794401.
      View in: PubMed
    2. Baker MJ, George DR, Kauffman GL. Navigating the Google blind spot: an emerging need for professional guidelines to address patient-targeted googling. J Gen Intern Med. 2015 Jan; 30(1):6-7. PMID: 25227741; PMCID: PMC4284258.
    3. Lalani SR, Ware SM, Wang X, Zapata G, Tian Q, Franco LM, Jiang Z, Bucasas K, Scott DA, Campeau PM, Hanchard N, Umaña L, Cast A, Patel A, Cheung SW, McBride KL, Bray M, Craig Chinault A, Boggs BA, Huang M, Baker MR, Hamilton S, Towbin J, Jefferies JL, Fernbach SD, Potocki L, Belmont JW. MCTP2 is a dosage-sensitive gene required for cardiac outflow tract development. Hum Mol Genet. 2013 Nov 01; 22(21):4339-48. PMID: 23773997; PMCID: PMC3792692.
    4. Volpe R, Baker M, Blackall GF, Kauffman G, Green MJ. A case of deceptive mastectomy. Narrat Inq Bioeth. 2013; 3(2):175-81. PMID: 24407090.
      View in: PubMed
    5. Volpe RL, Blackall GF, Green MJ, George D, Baker M, Kauffman, Jr GL. Googling a Patient. Hastings Center Report. 2013; 43:14-15.
    6. Popova OB, Baker MR, Tran TP, Le T, Serysheva II. Identification of ATP-binding regions in the RyR1 Ca²? release channel. PLoS One. 2012; 7(11):e48725. PMID: 23144945; PMCID: PMC3492408.
    7. Moole S, McGarrity TJ, Baker MJ. Screening for Familial Colorectal Cancer Risk amongst Colonoscopy Patients New to an Open-Access Endoscopy Center. ISRN Gastroenterol. 2012; 2012:152980. PMID: 22536519; PMCID: PMC3319995.
    8. Pichardo-Lowden AR, Manni A, Saunders BD, Baker MJ. Familial hyperparathyroidism due to a germline mutation of the CDC73 gene: implications for management and age-appropriate testing of relatives at risk. Endocr Pract. 2011 Jul-Aug; 17(4):602-9. PMID: 21324824.
      View in: PubMed
    9. Mukherjee A, McGarrity TJ, Ruggiero F, Koltun W, McKenna K, Poritz L, Baker MJ. The revised Bethesda guidelines: extent of utilization in a university hospital medical center with a cancer genetics program. Hered Cancer Clin Pract. 2010 Nov 22; 8:9. PMID: 21092199; PMCID: PMC2997085.
    10. Mukherjee A, McGarrity T, Staveley-O’Carroll, Ruggiero F, Baker MJ. Hereditary Diffuse Gastric Cancer : Moving Beyond Non-Directiveness in Genetic Counseling. Community Oncology. 2009; 6(1):41-45.
    11. Woo A, Sadana A, Mauger DT, Baker MJ, Berk T, McGarrity TJ. Psychosocial impact of Peutz-Jeghers Syndrome. Fam Cancer. 2009; 8(1):59-65. PMID: 18604594.
      View in: PubMed
    12. Kausmeyer DT, Lengerich EJ, Kluhsman BC, Morrone D, Harper GR, Baker MJ. A survey of patients' experiences with the cancer genetic counseling process: recommendations for cancer genetics programs. J Genet Couns. 2006 Dec; 15(6):409-31. PMID: 17106634.
      View in: PubMed
    13. Green MJ, Peterson SK, Baker MW, Friedman LC, Harper GR, Rubinstein WS, Peters JA, Mauger DT. Use of an educational computer program before genetic counseling for breast cancer susceptibility: effects on duration and content of counseling sessions. Genet Med. 2005 Apr; 7(4):221-9. PMID: 15834239; PMCID: PMC1201432.
    14. Schreibman IR, Baker M, Amos C, McGarrity TJ. The hamartomatous polyposis syndromes: a clinical and molecular review. Am J Gastroenterol. 2005 Feb; 100(2):476-90. PMID: 15667510.
      View in: PubMed
    15. Green MJ, Peterson SK, Baker MW, Harper GR, Friedman LC, Rubinstein WS, Mauger DT. Effect of a computer-based decision aid on knowledge, perceptions, and intentions about genetic testing for breast cancer susceptibility: a randomized controlled trial. JAMA. 2004 Jul 28; 292(4):442-52. PMID: 15280342; PMCID: PMC1237120.
    16. McGarrity TJ, Wagner Baker MJ, Ruggiero FM, Thiboutot DM, Hampel H, Zhou XP, Eng C. GI polyposis and glycogenic acanthosis of the esophagus associated with PTEN mutation positive Cowden syndrome in the absence of cutaneous manifestations. Am J Gastroenterol. 2003 Jun; 98(6):1429-34. PMID: 12818292.
      View in: PubMed
    17. Spritz RA, Bailin T, Nicholls RD, Lee ST, Park SK, Mascari MJ, Butler MG. Hypopigmentation in the Prader-Willi syndrome correlates with P gene deletion but not with haplotype of the hemizygous P allele. Am J Med Genet. 1997 Jul 11; 71(1):57-62. PMID: 9215770.
      View in: PubMed
    18. Vgontzas AN, Kales A, Seip J, Mascari MJ, Bixler EO, Myers DC, Vela-Bueno AV, Rogan PK. Relationship of sleep abnormalities to patient genotypes in Prader-Willi syndrome. Am J Med Genet. 1996 Sep 20; 67(5):478-82. PMID: 8886165.
      View in: PubMed
    19. Vgontzas AN, Bixler EO, Kales A, Rogan PK, Mascari M, Centurione A, Vela-Bueno A . Daytime sleepiness and REM abnormalities in PWS: Evidence of generalized hypoarousal. Intl J Neurosci. 1996; 87:127-139.
    20. Dow E, Cross S, Wolgemuth DJ, Lyonnet S, Mulligan LM, Mascari M, Ladda R, Williamson R. Second locus for Hirschsprung disease/Waardenburg syndrome in a large Mennonite kindred. Am J Med Genet. 1994 Oct 15; 53(1):75-80. PMID: 7802041.
      View in: PubMed
    21. Puffenberger EG, Kauffman ER, Bolk S, Matise TC, Washington SS, Angrist M, Weissenbach J, Garver KL, Mascari M, Ladda R, et al. Identity-by-descent and association mapping of a recessive gene for Hirschsprung disease on human chromosome 13q22. Hum Mol Genet. 1994 Aug; 3(8):1217-25. PMID: 7987295.
      View in: PubMed
    22. Ladda RL, Zonana J, Ramer JC, Mascari MJ, Rogan PK. Congenital contractures, ectodermal dysplasia, cleft lip/palate, and developmental impairment: a distinct syndrome. Am J Med Genet. 1993 Sep 15; 47(4):550-5. PMID: 7504881.
      View in: PubMed
    23. Mascari MJ, Gottlieb W, Rogan PK, Butler MG, Waller DA, Armour JA, Jeffreys AJ, Ladda RL, Nicholls RD. The frequency of uniparental disomy in Prader-Willi syndrome. Implications for molecular diagnosis. N Engl J Med. 1992 Jun 11; 326(24):1599-607. PMID: 1584261.
      View in: PubMed
    24. Ramer JC, Mascari MJ, Manders E, Ladda RL . Trigonocephaly, pachygyria, retinal coloboma and cardiac defect: A distinct syndrome. Dysmorphology and Clinical Genetics. 1992; 6(1):15-20.
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