ANTHONY HOLLENBERG M.D.
NPI 1699864173
Internal Medicine - Endocrinology, Diabetes & Metabolism in Boston, MA
About Anthony Hollenberg M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANTHONY HOLLENBERG M.D. (NPI 1699864173) is an individual endocrinology, diabetes & metabolism provider in Boston, Massachusetts, licensed in Massachusetts (80143) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Anthony Hollenberg M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Anthony Hollenberg reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 573 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 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 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 Anthony Hollenberg's NPI number?
The NPI number for Anthony Hollenberg is 1699864173. It was assigned to this individual provider in the NPPES registry on October 12, 2006.
Where is Anthony Hollenberg located?
Anthony Hollenberg practices at 732 Harrison Ave, Fl 2 Preston Bldg, Boston, MA 02118. The listed phone number is (617) 638-7470.
What is Anthony Hollenberg's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Anthony Hollenberg enrolled in Medicare?
Yes. Anthony Hollenberg is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Anthony Hollenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anthony Hollenberg reassigns Medicare benefits to 3 organizations: Evans Medical Foundation, Inc. (Boston, MA), Beth Israel Deaconess Medical Center, Inc. (Boston, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr 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 Anthony Hollenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anthony Hollenberg accept?
Health plans from WellSense Health Plan list Anthony Hollenberg as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Anthony Hollenberg was last updated on December 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Anthony Hollenberg, M.D. · NPI 1699864173
Endocrinology, Diabetes & Metabolism physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 12, 2006.
## Identity
- **NPI:** 1699864173 (Entity type: Individual)
- **Enumerated:** October 12, 2006
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 80143 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 732 HARRISON AVE, FL 2, PRESTON BLDG, Boston, MA 02118-2309
- **Phone:** (617) 638-7470 · **Fax:** (617) 638-7449
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **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): Evans Medical Foundation, Inc. (NPI 1912954124, Boston, MA); Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** December 19, 2023
- **Other identifiers:** Medicaid 3139232 (NH); Medicaid 110048562A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1699864173) · Data from the CMS NPPES public registry.