Caroline Samara Fox, MD
Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Caroline Samara Fox, MD is an endocrinology, diabetes & metabolism physician with a practice address in Boston, Massachusetts, and NPI 1346291226, issued on May 15, 2006. Check the license (Massachusetts 204176, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Caroline Samara Fox
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 204176 MA
Self-reported in NPPES; status is on the state search - Practice location
- 221 Longwood Ave, Boston, MA 02115
- Phone
- (617) 732-5661
- Enumerated
- May 15, 2006
- Record last updated
- Sep 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (617) 525-0436
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →
Also registered at 221 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gail Adler, MD PHDEndocrinology, Diabetes & Metabolism Physician1780675280
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- Anastasia-Stefania AlexopoulosEndocrinology, Diabetes & Metabolism Physician1134560543
- Bader AlharbiDermatology Physician1932021771
- Abby Altman, PHDCounseling Psychologist1518220433
Verify Caroline Samara Fox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 204176Check 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: $18.97
1 payment: food and beverage; the largest payer was Regeneron Pharmaceuticals, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Caroline Samara Fox among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Caroline Samara Fox, MD is one of 522 endocrinology, diabetes & metabolism physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts
There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.
All 522 in Massachusetts → Every provider in Boston → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Gail Adler, MD PHDBoston, MA 021151780675280
- Shehzad Basaria, MDBoston, MA 021151699730101
- Edward Brown, MDBoston, MA 021151871550137
- Margo Hudson, MDBoston, MA 021151922065242
- Ursula Kaiser, MDBoston, MA 021151053377374
- Nikheel Kolatkar, M.D.Boston, MA 021151396748463
- P Larsen, MDBoston, MA 021151700842952
- Meryl Leboff, MDBoston, MA 021151235106030
Common questions
What is Caroline Samara Fox, MD's NPI number?
Caroline Samara Fox, MD's National Provider Identifier (NPI) is 1346291226, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Samara Fox, MD located?
The NPPES record lists a practice address at 221 Longwood Ave, Boston, MA, 02115. Phone: (617) 732-5661. Providers update this record themselves, so call before visiting.
How can I verify Caroline Samara Fox, MD's license?
NPPES lists Massachusetts license number 204176, 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.