John Crosby Clapp, M.D.
Cardiovascular Disease Physician · Danvers, MA
John Crosby Clapp, M.D. is a cardiovascular disease physician with a practice address in Danvers, Massachusetts, and NPI 1457364788, issued on Aug 15, 2006. Check the license (Massachusetts 35028, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Crosby Clapp
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 35028 MA
Self-reported in NPPES; status is on the state search - Practice location
- 140 Commonwealth Ave, Danvers, MA 01923
- Phone
- (978) 777-2827
- Enumerated
- Aug 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (978) 777-6588
- Entity
- Type 1 · individual
Also registered at 140 Commonwealth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Phyllis Caffarella, FNPNurse Practitioner1245241298
- Sara Castantini, FNP-BCFamily Nurse Practitioner1477929610
- Anthony Conti, DOFamily Medicine Physician1215964291
- Dino Crognale, MDFamily Medicine Physician1134155526
- Paul Gamber, D.M.D.General Practice Dentistry1710074992
- Lori Goodwin, NPAdult Health Nurse Practitioner1497736284
Verify John Crosby 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 35028Check 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: $75.26
1 payment: food and beverage; the largest payer was Corcept Therapeutics. The 16,686 providers of this specialty with any payment received $3,819.56 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.
Cardiovascular Disease Physician providers in Massachusetts
There are 1,080 cardiovascular disease physician records in Massachusetts.
Other cardiovascular disease physician records in Massachusetts
- Mahmoud Abdelghany, M.D.Springfield, MA1134479629
- Rishard Abdul, M.B.B.SSpringfield, MA1114412830
- Saeed Abughazaleh, MDSpringfield, MA1427782762
- Subasit Acharji, MDLeominster, MA1225246358
- Kenneth Adams, M.D.Haverhill, MA1720082787
- Nicholas Adamstein, MDBoston, MA1548897218
- Dale Adler, M.D.Boston, MA1295769966
- Nadeem Afridi, MDNewburyport, MA1619961372
- Hanna Ahmed, M.DWorcester, MA1417111428
- Mashrafi Ahmed, M.DSpringfield, MA1265759328
Common questions
What is John Crosby Clapp, M.D.'s NPI number?
John Crosby Clapp, M.D.'s National Provider Identifier (NPI) is 1457364788, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Crosby Clapp, M.D. located?
The NPPES record lists a practice address at 140 Commonwealth Ave, Danvers, MA, 01923. Phone: (978) 777-2827. Providers update this record themselves, so call before visiting.
How can I verify John Crosby Clapp, M.D.'s license?
NPPES lists Massachusetts license number 35028, 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.