Howard Mark Heller, MD
Internal Medicine Physician · Cambridge, MA
Howard Mark Heller, MD is an internal medicine physician with a practice address in Cambridge, Massachusetts, and NPI 1508856287, issued on Oct 25, 2005. Check the license (Massachusetts 74425, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Howard Mark Heller
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 74425 MA
Self-reported in NPPES; status is on the state search - Practice location
- 77 Massachusetts Ave, Cambridge, MA 02139
- Phone
- (617) 253-1615
- Enumerated
- Oct 25, 2005
- Record last updated
- Oct 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (617) 258-0437
- Medicaid ID
- 3080935 MA
- Entity
- Type 1 · individual
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Verify Howard Mark Heller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 74425Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
111 Medicare Part D claims for 37 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Clindamycin Phosphate11 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.
Howard Mark Heller among 6,825 internal medicine physician records in Massachusetts
Howard Mark Heller, 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 fileNo · 60% of these records are
- Record last updated2011 · 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).
300 internal medicine physician records list a practice address in Cambridge
They are 300 of the 5,145 NPPES records with a practice address in Cambridge, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Cambridge → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Baron, MDCambridge, MA 021391376503318
- John Brusch, MDCambridge, MA 021391639138449
- David Diamond, MDCambridge, MA 021391265411664
- Leigh Firn, MDCambridge, MA 021391194706507
- Agnes Graves, M.D.Cambridge, MA 021391932160934
- Michael Kane, MDCambridge, MA 021391376524769
- William Kettyle, MDCambridge, MA 021391306823414
- Karen Leitner, M.D.Cambridge, MA 021391043283658
Common questions
What is Howard Mark Heller, MD's NPI number?
Howard Mark Heller, MD's National Provider Identifier (NPI) is 1508856287, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Howard Mark Heller, MD located?
The NPPES record lists a practice address at 77 Massachusetts Ave, Cambridge, MA, 02139. Phone: (617) 253-1615. Providers update this record themselves, so call before visiting.
How can I verify Howard Mark Heller, MD's license?
NPPES lists Massachusetts license number 74425, 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 Howard Mark Heller, MD prescribe under Medicare Part D?
In 2024, Howard Mark Heller, MD had 111 Medicare Part D claims for 37 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.