Ryan Michael Greytak, M.D.
Psychiatry Physician · Fresno, CA
Ryan Michael Greytak, M.D. is a psychiatry physician with a practice address in Fresno, California, and NPI 1750604617, issued on Mar 8, 2010. Check the license (California A126390, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan Michael Greytak
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A126390 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4855 E Cesar Chavez Blvd, Fresno, CA 93727
- Phone
- (559) 255-8395
- Enumerated
- Mar 8, 2010
- Record last updated
- Apr 2, 2025
- Medicare enrollment
- Enrolled (PECOS I20131024001385); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 4855 E Cesar Chavez Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kou LeeStudent in an Organized Health Care Education/Training Program1558249334
- Autumn Lossij-MuasDay Training/Habilitation Specialist1629808159
- Chue VangDay Training/Habilitation Specialist1891289633
- Kelly VangStudent in an Organized Health Care Education/Training Program1669350302
- Pojaman VangStudent in an Organized Health Care Education/Training Program1760360796
- Chao VueMarriage & Family Therapist1265177182
Verify Ryan Michael Greytak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A126390Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $94.67
1 payment: food and beverage; the largest payer was Neuronetics, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ryan Michael Greytak among 8,673 psychiatry physician records in California
Ryan Michael Greytak, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2009 · median 2005 among the 3,295 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Fresno → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- David Benavidez, MDFresno, CA 937271447663182
- Raminder Pal Cheema, MDFresno, CA 937271477963528
- Richard Granese, M.D.Fresno, CA 937271437175189
- Stephane Ngo, M.D.Fresno, CA 937271407886765
- Sujatha Ramakrishna, MDFresno, CA 937271306908140
- Hoang Tieu, M.D.Fresno, CA 937271215018783
- Sandy Abdelkedous, MDFresno, CA 937261306093109
- Arman Bhatti, MDFresno, CA 937261841751518
Common questions
What is Ryan Michael Greytak, M.D.'s NPI number?
Ryan Michael Greytak, M.D.'s National Provider Identifier (NPI) is 1750604617, issued on Mar 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Michael Greytak, M.D. located?
The NPPES record lists a practice address at 4855 E Cesar Chavez Blvd, Fresno, CA, 93727. Phone: (559) 255-8395. Providers update this record themselves, so call before visiting.
How can I verify Ryan Michael Greytak, M.D.'s license?
NPPES lists California license number A126390, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.