Zachary Marks, M.D.
NPI 1265819445 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Marks, M.D. is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1265819445).
Provider details
- NPI number
- 1265819445
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A146409 (CA)
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
11 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
- 2015-04-27
- Last updated
- 2019-05-09
Frequently asked questions
- What is Zachary Marks's NPI number?
- Zachary Marks's National Provider Identifier (NPI) is 1265819445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Marks's specialty?
- Zachary Marks is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Marks located?
- Zachary Marks's practice location on file with NPPES is 8405 Beverly Blvd, Los Angeles, CA 90048-3401.
- What is Zachary Marks's phone number?
- The practice phone number listed in the NPPES registry for Zachary Marks is (323) 653-1990.
- Does Zachary Marks accept Medicare?
- Zachary Marks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Marks's NPI active?
- Yes — Zachary Marks's NPI (1265819445) is active in the NPPES registry as of the last update on 2019-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.