Mark Allen Clapp, MD
Maternal & Fetal Medicine Physician · Boston, MA
Mark Allen Clapp, MD is a maternal & fetal medicine physician with a practice address in Boston, Massachusetts, and NPI 1407122930, issued on Mar 29, 2012. Check the license (Massachusetts 26265862, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark Allen Clapp
- Credential
- MD
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License numbers
- 26265862 MA
22231 NH
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 724-2229
- Enumerated
- Mar 29, 2012
- Record last updated
- Oct 31, 2022
- Medicaid ID
- 3117234 NH
- Medicare enrollment
- Enrolled (PECOS I20190509002704); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 92 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Taimur AbbasiInternal Medicine Physician1841673522
- Megan Abbott, MDAnesthesiology Physician1730839333
- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
- Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590
Verify Mark Allen Clapp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 26265862Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $16.77
1 payment: food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 784 providers of this specialty with any payment received $1,252.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- Wentworth Douglass Physician CorporationPortsmouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Allen Clapp among 92 maternal & fetal medicine physician records in Massachusetts
Mark Allen Clapp, MD is one of 92 maternal & fetal medicine physician records with a practice address in Massachusetts. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 27% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2012 · median 2005 among the 75 with a school on file
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in Massachusetts
There are 92 maternal & fetal medicine physician records in Massachusetts.
All 92 in Massachusetts → Every provider in Boston → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- William Barth, MDBoston, MA 021141144211715
- Arlin Delgado, MDBoston, MA 021141194288993
- Christina Duzyj-Buniak, MD MPHBoston, MA 021141982888111
- Jeffrey Ecker, MDBoston, MA 021141770573115
- Michael Greene, MDBoston, MA 021141376533406
- Sarah Miller, MDBoston, MA 021141679137640
- Allan Nadel, MDBoston, MA 021141063403574
- Malavika Prabhu, M.D.Boston, MA 021141861781452
Common questions
What is Mark Allen Clapp, MD's NPI number?
Mark Allen Clapp, MD's National Provider Identifier (NPI) is 1407122930, issued on Mar 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mark Allen Clapp, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 724-2229. Providers update this record themselves, so call before visiting.
How can I verify Mark Allen Clapp, MD's license?
NPPES lists Massachusetts license number 26265862, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it 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.