NPPES file of Aug 9, 2026

Clinical Genetics (M.D.) Physician in Massachusetts

56 NPPES records list clinical genetics (m.d.) physician with a practice address in Massachusetts, 0.8 per 100,000 residents, the 3rd highest rate of 49. Boston and Cambridge have the most; each record links to the provider's NPI and the Massachusetts license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207SG0201X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Boston has the most, 47

  1. Boston47
  2. Cambridge2
  3. Worcester2
  4. Brookline1
  5. Paxton1

Clinical Genetics (M.D.) Physician records in Massachusetts

  1. Lindsay RomoBoston, MA 021151437618527
  2. Stephanie Sacharow, M.D.Boston, MA 021151134328982
  3. Brian Skotko, M.D., M.P.P.Boston, MA 021141013182500
  4. Joan Stoler, MDBoston, MA 021151740270107
  5. David Sweetser, MDBoston, MA 021141558320762
  6. Wen-Hann Tan, M.D.Boston, MA 021151356357941

Source: CMS NPPES, primary taxonomy 207SG0201X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 3 of 49 per resident

  1. District of Columbia2.5
  2. Delaware1.0
  3. Massachusetts0.8
  4. Maryland0.8
  5. South Dakota0.7
  6. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207SG0201X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

58.9% of these records appear in a Medicare file, against 62.3% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Massachusetts58.9%
  2. United States62.3%

Clinical Genetics (M.D.) Physician records in Massachusetts, measured

  • In a Medicare file33 of 56 · 58.9% here, 62.3% nationally
  • In the CMS Doctors and Clinicians file28 · 50.0% here, 47.7% nationally
  • Not updated in five years or more33 · 58.9% here, 51.3% nationally
  • Median graduation year1999 · the 28 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207SG0201X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

56 NPPES records list clinical genetics (m.d.) physician (207SG0201X) as their primary taxonomy with a practice address in Massachusetts: 0.8 per 100,000 residents against 0.3 nationally (50 states and D.C.). Boston has 47 of them (84%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Ohio55
  2. Texas59
  3. Florida49
  4. Maryland48

States with a similar rate per 100,000

  1. Delaware1.0
  2. Missouri0.5
  3. Minnesota0.4
  4. Washington0.4

The largest states

  1. California151
  2. New York73
  3. Texas59
  4. Ohio55
  5. Florida49

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.