J Benjamin Crocker, MD
Internal Medicine Physician · Boston, MA
J Benjamin Crocker, MD is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1063402790, issued on Oct 25, 2005. Check the license (Massachusetts 159921, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- J Benjamin Crocker
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 159921 MA
Self-reported in NPPES; status is on the state search - Practice location
- 101 Merrimac St Ste 1000, Boston, MA 02114
- Phone
- (617) 724-1100
- Enumerated
- Oct 25, 2005
- Record last updated
- Feb 7, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (617) 643-8898
- Medicaid ID
- 0114863 MA
- Medicare enrollment
- Enrolled (PECOS I20040723000250); may accept Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 101 Merrimac St Ste 1000
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Judge, MDInternal Medicine Physician1568449403
Verify J Benjamin Crocker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 159921Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
36 Medicare Part D claims for 34 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Paxlovid18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Mass General Brigham Medical Group Northern Massachusetts IncDanvers, MA
- Mass General Brigham Urgent Care LLCNewton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
J Benjamin Crocker among 6,825 internal medicine physician records in Massachusetts
J Benjamin Crocker, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1997 · median 2004 among the 4,103 with a school on file
- Record last updated2014 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,320 internal medicine physician records list a practice address in Boston
They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Boston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jaime Chang, MDBoston, MA 021141205825197
- Jeffrey Engelman, MD PHDBoston, MA 021141538159108
- James Evans, MDBoston, MA 021141215939533
- Nicolette Fontaine, MDBoston, MA 021141841287174
- Nancy Gagliano, MDBoston, MA 021141881680767
- Patricia Gibbons, MDBoston, MA 021141619967221
- Steven Hersch, MDBoston, MA 021141174512149
- Mira Kautzky, M.D.Boston, MA 021141972505402
Common questions
What is J Benjamin Crocker, MD's NPI number?
J Benjamin Crocker, MD's National Provider Identifier (NPI) is 1063402790, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is J Benjamin Crocker, MD located?
The NPPES record lists a practice address at 101 Merrimac St Ste 1000, Boston, MA, 02114. Phone: (617) 724-1100. Providers update this record themselves, so call before visiting.
How can I verify J Benjamin Crocker, MD's license?
NPPES lists Massachusetts license number 159921, 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.
How much does J Benjamin Crocker, MD prescribe under Medicare Part D?
In 2024, J Benjamin Crocker, MD had 36 Medicare Part D claims for 34 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.