Joshua Fierer, M.D.
NPI 1871525584 · Infectious Disease Physician · San Diego, CA
Enrolled with Medicare as Order and Referring Only - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua Fierer, M.D. is a Infectious Disease Physician provider in San Diego, CA (NPI 1871525584).
Provider details
- NPI number
- 1871525584
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G14386 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-07-06
- Last updated
- 2012-03-01
Frequently asked questions
- What is Joshua Fierer's NPI number?
- Joshua Fierer's National Provider Identifier (NPI) is 1871525584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Fierer's specialty?
- Joshua Fierer is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Joshua Fierer located?
- Joshua Fierer's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9001.
- What is Joshua Fierer's phone number?
- The practice phone number listed in the NPPES registry for Joshua Fierer is (858) 552-7446.
- Does Joshua Fierer accept Medicare?
- Joshua Fierer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joshua Fierer's NPI active?
- Yes — Joshua Fierer's NPI (1871525584) is active in the NPPES registry as of the last update on 2012-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.