Registry data as of Aug 27, 2026

Obstetrics Physician in Massachusetts

27 NPPES records list obstetrics physician with a Massachusetts practice address, 0.4 per 100,000 residents, 24 of 51 per resident. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search.

CMS NPPES registry, loaded Aug 27, 2026; 2023 Census estimates · NUCC 207VX0000X · method

Boston has the most, 9

Source: CMS NPPES, primary taxonomy 207VX0000X by practice city, loaded Aug 27, 2026.

Obstetrics Physician records in Massachusetts

  1. Mohamed Ali, M.D.Fall River, MA 027201124122270
  2. Patricia Aronson, M.D.Worcester, MA 016051710978085
  3. Alexandra Belcher-Obejero-Paz, M.D., M.P.H.Boston, MA 021181952798704
  4. Peter Brown, MDPembroke, MA 023591942249214
  5. Mary Chang, D.O.Haverhill, MA 018301407870389
  6. Amy Coe, ARNPBoston, MA 021181851478051
  7. Ai-Ris Collier, M.D.Boston, MA 022151750675351
  8. Robert DalessandroLeominster, MA 014531295967669
  9. Debra Disandro, M.D.Springfield, MA 011071043219397
  10. Rachel Flynn, CNMBoston, MA 021091093865750
  11. Jonathan Friedes, MDBoston, MA 022151780606160
  12. Mary Herlihy, M.D.Worcester, MA 016051679564967
  13. Taylor Hotchkiss, M.D.Arlington, MA 024761023150695
  14. Susan Lincoln, M.D.Needham, MA 024921568423119
  15. Amir Mehdizadeh, M.D.Worcester, MA 016041073976932
  16. Vikas Merchia, M.D.Brockton, MA 023011811966948
  17. Rumbidzai Mushavi, MDBoston, MA 021141902365117
  18. Melanie Nathan, MDDanvers, MA 019231861655821
  19. Debra Papa, M.D.Worcester, MA 016051053392019
  20. Emma PattersonBoston, MA 021111275425365
  21. Edward Peskin, M.D.Worcester, MA 016051982685061
  22. Shenbagavalli Ramaswami, MDBrockton, MA 023011255385266
  23. Serena Rosa, WHNP, MPH, CLCDedham, MA 020261215413240
  24. Peilan Tang, M.D.Springfield, MA 011071689017238
  25. Alison VogellBoston, MA 021111598909269
  26. Emily Wu, M.D.Worcester, MA 016051518253350
  27. Lily Wu, M.D.Boston, MA 022151073824835

Massachusetts ranks 24 of 51 per resident

  1. Minnesota0.4
  2. Ohio0.4
  3. Florida0.4
  4. Massachusetts0.4
  5. New Jersey0.4
  6. Tennessee0.4
  7. 50 states and D.C.0.4

Source: CMS NPPES, primary taxonomy 207VX0000X by practice state, loaded Aug 27, 2026; records per 100,000 residents, 2023 Census estimates.

What the count covers

The CMS National Plan and Provider Enumeration System currently lists 27 Obstetrics Physician providers with a primary practice address in Massachusetts, all registered under the Obstetrics & Gynecology NUCC taxonomy branch. Each clinician on this roster selected Obstetrics Physician as their primary taxonomy at NPI enrollment, a self-reported classification that is updated whenever the provider files a correction with CMS. The count excludes organizations (group practices, hospitals, clinics operate under separate NPIs) and excludes providers who chose a different primary specialty even if they practice Obstetrics Physician part-time. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

At 27 enrolled providers, Obstetrics Physician in Massachusetts is a narrow-coverage market, that matters for search-radius decisions, because patients in Massachusetts outside the largest metros often need to broaden to adjacent cities to find a local Obstetrics Physician clinician. The directory below is paginated 50 providers at a time (1 page total) and is sorted alphabetically by last name, so scanning for a specific practice usually goes faster than scrolling; on the provider detail page you'll find the full NPPES record including address, phone, credentials, and any published Medicare Part D prescribing activity for 2024.

Before contacting anyone on this list, verify the practice is still at the address shown, NPPES refreshes monthly, but providers who have relocated, retired, or changed employers may not have filed an NPI update yet. Important: PlainDoctor is a directory of publicly available CMS government data covering Obstetrics Physician providers in Massachusetts, not a quality ranking, a board-certification verifier, or medical advice. Always confirm credentials through the NPPES NPI Registry, the Massachusetts medical board, and, where relevant, the ABMS, AOA, or the specialty's primary certifying body before making any clinical decision. Nothing on this page substitutes for a conversation with a licensed clinician.

States with a similar number

  1. Puerto Rico26
  2. Tennessee26
  3. Arizona25
  4. Louisiana25

States with a similar rate per 100,000

  1. Florida0.4
  2. Ohio0.4
  3. New Jersey0.4
  4. Minnesota0.4

The largest states

  1. California165
  2. New York114
  3. Texas104
  4. Florida88
  5. Georgia62

Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.