Marvin H. Greenbaum, M.D. PC
NPI 1154438521 · Ophthalmology Physician · Bala Cynwyd, PA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marvin H. Greenbaum, M.D. PC is a Ophthalmology Physician organization in Bala Cynwyd, PA (NPI 1154438521).
Provider details
- NPI number
- 1154438521
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Keith Mathers, Ophthalmology(610) 667-4066
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-23
- Last updated
- 2025-02-07
- Certified
- 2025-02-07
Frequently asked questions
- What is Marvin H. Greenbaum, M.D. PC's NPI number?
- Marvin H. Greenbaum, M.D. PC's National Provider Identifier (NPI) is 1154438521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Marvin H. Greenbaum, M.D. PC?
- Marvin H. Greenbaum, M.D. PC is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Marvin H. Greenbaum, M.D. PC located?
- Marvin H. Greenbaum, M.D. PC's practice location on file with NPPES is 501 Belmont Ave, Bala Cynwyd, PA 19004-1302.
- What is Marvin H. Greenbaum, M.D. PC's phone number?
- The practice phone number listed in the NPPES registry for Marvin H. Greenbaum, M.D. PC is (610) 667-4066.
- Does Marvin H. Greenbaum, M.D. PC accept Medicare?
- Marvin H. Greenbaum, M.D. PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Marvin H. Greenbaum, M.D. PC?
- The authorized official listed on Marvin H. Greenbaum, M.D. PC's NPPES record is Keith Mathers, Ophthalmology. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Marvin H. Greenbaum, M.D. PC's NPI active?
- Yes — Marvin H. Greenbaum, M.D. PC's NPI (1154438521) is active in the NPPES registry as of the last update on 2025-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.