NPPES file of Aug 9, 2026

Barbara C. Holbert, MD

Internal Medicine Physician · Boston, MA

Barbara C. Holbert, MD is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1194715623, issued on Oct 26, 2005. Check the license (Massachusetts 59511, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194715623
Name
Barbara C. Holbert
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
59511 MA
Self-reported in NPPES; status is on the state search
Practice location
294 Washington St, Boston, MA 02108
Phone
(617) 728-6000
Enumerated
Oct 26, 2005
Record last updated
Sep 2, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(617) 728-6040
Medicaid ID
3081877 MA
Medicare enrollment
Enrolled (PECOS I20040706000143); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1985
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 294 Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jeffery Coen, DPMPodiatrist1891751913
  2. Barbara Ferullo, LMHCMental Health Counselor1700904109
  3. Jessica Hancock-Allen, FNP-BCFamily Nurse Practitioner1063844439
  4. Rebecca Harley, PHDClinical Psychologist1427023167
  5. Carolyn Hintlian, RD, LDNRegistered Dietitian1053337246
  6. Ian Nurse, DCChiropractor1114281797

Verify Barbara C. Holbert in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 59511
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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31% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,205 Medicare Part D claims for 218 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 84 claims were for opioids.

  1. Barbara Holbert2,205
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium202 claims
  2. Amlodipine Besylate106 claims
  3. Levothyroxine Sodium89 claims
  4. Losartan Potassium85 claims
  5. Omeprazole84 claims
  6. Lorazepam76 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 one group practice

  1. Massachusetts General Physicians Organization IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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.

Other internal medicine physician records in Massachusetts

  1. Nawal Aamir, MDWorcester, MA1588248926
  2. Nathan Abare, MDSpringfield, MA1386852747
  3. Nooshin Abbasi, MD MPHNewton, MA1831888353
  4. Taimur AbbasiBoston, MA1841673522
  5. Lauren Abbate, MDBoston, MA1922099621
  6. Bassima Abdallah, MDBoston, MA1912327305
  7. Maya Abdallah, MDBoston, MA1861854937
  8. Samah Abdallah, MDBrighton, MA1730814971
  9. Omar Abdel-Wahab, M.D.Boston, MA1023042777
  10. Mohab AbdelhalimBoston, MA1871388496

Common questions

What is Barbara C. Holbert, MD's NPI number?

Barbara C. Holbert, MD's National Provider Identifier (NPI) is 1194715623, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Barbara C. Holbert, MD located?

The NPPES record lists a practice address at 294 Washington St, Boston, MA, 02108. Phone: (617) 728-6000. Providers update this record themselves, so call before visiting.

How can I verify Barbara C. Holbert, MD's license?

NPPES lists Massachusetts license number 59511, 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 Barbara C. Holbert, MD prescribe under Medicare Part D?

In 2024, Barbara C. Holbert, MD had 2,205 Medicare Part D claims for 218 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.