Gary Reyzin, MD
NPI 1871779769 · Internal Medicine Physician · Woodland Hills, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Reyzin, MD is a Internal Medicine Physician provider in Woodland Hills, CA (NPI 1871779769).
Provider details
- NPI number
- 1871779769
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A102312 (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
18 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
- 2008-01-10
- Last updated
- 2016-04-22
Frequently asked questions
- What is Gary Reyzin's NPI number?
- Gary Reyzin's National Provider Identifier (NPI) is 1871779769, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Reyzin's specialty?
- Gary Reyzin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Reyzin located?
- Gary Reyzin's practice location on file with NPPES is 5601 De Soto Ave, Woodland Hills, CA 91367-6701.
- What is Gary Reyzin's phone number?
- The practice phone number listed in the NPPES registry for Gary Reyzin is (818) 719-2000.
- Does Gary Reyzin accept Medicare?
- Gary Reyzin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Reyzin's NPI active?
- Yes — Gary Reyzin's NPI (1871779769) is active in the NPPES registry as of the last update on 2016-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.