Ryan Greytak, M.D.
NPI 1750604617 · Psychiatry Physician · Fresno, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Greytak, M.D. is a Psychiatry Physician provider in Fresno, CA (NPI 1750604617).
Provider details
- NPI number
- 1750604617
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A126390 (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 tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
6 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$95 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- 4879 E Kings Canyon RdFresno, CA 93727-3811Phone: (559) 255-8395
- 6121 N Thesta St Ste 304Fresno, CA 93710-5294Phone: (559) 538-1735
- 4411 E Kings Canyon RdFresno, CA 93702-3604Phone: (559) 512-8650
- 4871 E Cesar Chavez BlvdFresno, CA 93727-3811Phone: (559) 255-8395
- 265 S Anita Dr Ste 102-104Orange, CA 92868-3355Phone: (714) 410-3500Fax: (714) 410-3526
Registry dates
- Enumerated
- 2010-03-08
- Last updated
- 2025-04-02
- Certified
- 2025-03-20
Frequently asked questions
- What is Ryan Greytak's NPI number?
- Ryan Greytak's National Provider Identifier (NPI) is 1750604617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Greytak's specialty?
- Ryan Greytak is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Greytak located?
- Ryan Greytak's practice location on file with NPPES is 4855 E Cesar Chavez Blvd, Fresno, CA 93727-3811.
- What is Ryan Greytak's phone number?
- The practice phone number listed in the NPPES registry for Ryan Greytak is (559) 255-8395.
- Does Ryan Greytak accept Medicare?
- Ryan Greytak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Greytak's NPI active?
- Yes — Ryan Greytak's NPI (1750604617) is active in the NPPES registry as of the last update on 2025-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.