IndividualActive
Joan Vonfeldt, MD
NPI 1689600199 · Rheumatology Physician · Philadelphia, PA
Joan Vonfeldt, MD is a Rheumatology Physician provider in Philadelphia, PA (NPI 1689600199).
Provider details
- NPI number
- 1689600199
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD032440E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
3400 Spruce St
8 Penn Tower
Philadelphia, PA 19104
Phone: (215) 662-2415
Street-level locationGet directions
Mailing address
3400 Spruce St
Philadelphia, PA 19104-4206
Registry dates
- Enumerated
- 2006-06-25
- Last updated
- 2011-05-05
Frequently asked questions
- What is Joan Vonfeldt's NPI number?
- Joan Vonfeldt's National Provider Identifier (NPI) is 1689600199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Vonfeldt's specialty?
- Joan Vonfeldt is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Joan Vonfeldt located?
- Joan Vonfeldt's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104.
- What is Joan Vonfeldt's phone number?
- The practice phone number listed in the NPPES registry for Joan Vonfeldt is (215) 662-2415.
- Is Joan Vonfeldt's NPI active?
- Yes — Joan Vonfeldt's NPI (1689600199) is active in the NPPES registry as of the last update on 2011-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.