DR. HOWARD MARK HELLER MD
NPI 1508856287
Internal Medicine in Cambridge, MA
About Dr. Howard Mark Heller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HOWARD MARK HELLER MD (NPI 1508856287) is an individual internal medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (74425) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Howard Mark Heller Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Howard Heller reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cambridge, MA 02142
- Reassigned Medicare billing, Massachusetts enrollment
- 119 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02139 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CAMBRIDGE, MA 02139
CAMBRIDGE, MA 02139
CAMBRIDGE, MA 02139
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Howard Heller's NPI number?
The NPI number for Howard Heller is 1508856287. It was assigned to this individual provider in the NPPES registry on October 25, 2005.
Where is Howard Heller located?
Howard Heller practices at 77 Massachusetts Ave E 23 Massachusetts Insitute Of Technology, Cambridge, MA 02139. The listed phone number is (617) 253-1615.
What is Howard Heller's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Howard Heller enrolled in Medicare?
Yes. Howard Heller is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Howard Heller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Howard Heller reassigns Medicare benefits to 3 organizations: Massachusetts Institute Of Technology (Cambridge, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Howard Heller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Howard Heller was last updated on October 11, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Howard Mark Heller, MD · NPI 1508856287
Internal Medicine physician in Cambridge, Massachusetts. Individual provider, active in the CMS NPPES registry since October 25, 2005.
## Identity
- **NPI:** 1508856287 (Entity type: Individual)
- **Enumerated:** October 25, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 74425 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 77 MASSACHUSETTS AVE, E 23 MASSACHUSETTS INSITUTE OF TECHNOLOGY, Cambridge, MA 02139-4301
- **Phone:** (617) 253-1615 · **Fax:** (617) 258-0437
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Massachusetts Institute Of Technology (NPI 1346308723, Cambridge, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 11, 2011
- **Other identifiers:** Other 074425 (MA); Medicare ID-Type Unspecified J11283 (MA); Other J11283 (MA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1508856287) · Data from the CMS NPPES public registry.