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Donald Friedman, M.D.
NPI 1578849162 · Rheumatology Physician · Philadelphia, PA
Donald Friedman, M.D. is a Rheumatology Physician provider in Philadelphia, PA (NPI 1578849162).
Provider details
- NPI number
- 1578849162
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD013083E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
1802 Waverly St
Philadelphia, PA 19146-1423
Phone: (215) 735-5328
Street-level locationGet directions
Mailing address
1802 Waverly St
Philadelphia, PA 19146-1423
Registry dates
- Enumerated
- 2011-10-26
- Last updated
- 2011-12-22
Frequently asked questions
- What is Donald Friedman's NPI number?
- Donald Friedman's National Provider Identifier (NPI) is 1578849162, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Friedman's specialty?
- Donald Friedman is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Friedman located?
- Donald Friedman's practice location on file with NPPES is 1802 Waverly St, Philadelphia, PA 19146-1423.
- What is Donald Friedman's phone number?
- The practice phone number listed in the NPPES registry for Donald Friedman is (215) 735-5328.
- Is Donald Friedman's NPI active?
- Yes — Donald Friedman's NPI (1578849162) is active in the NPPES registry as of the last update on 2011-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.