Mark Penn, M.D.
NPI 1639205255 · Family Medicine Physician · La Mesa, CA
Mark Penn, M.D. is a Family Medicine Physician provider in La Mesa, CA (NPI 1639205255).
Provider details
- NPI number
- 1639205255
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036085370 (IL)
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
- 2007-02-26
- Last updated
- 2015-11-11
Frequently asked questions
- What is Mark Penn's NPI number?
- Mark Penn's National Provider Identifier (NPI) is 1639205255, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Penn's specialty?
- Mark Penn is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Penn located?
- Mark Penn's practice location on file with NPPES is 8080 Parkway Dr, La Mesa, CA 91942-2104.
- What is Mark Penn's phone number?
- The practice phone number listed in the NPPES registry for Mark Penn is (800) 528-5000.
- Is Mark Penn's NPI active?
- Yes — Mark Penn's NPI (1639205255) is active in the NPPES registry as of the last update on 2015-11-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.