Katayoon Shayan, M.D.
Anatomic Pathology & Clinical Pathology Physician · San Diego, CA
Katayoon Shayan, M.D. is an anatomic pathology & clinical pathology physician with a practice address in San Diego, California, and NPI 1336210194, issued on Nov 13, 2006. Check the license (California A83333, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katayoon Shayan
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- A83333 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3020 Childrens Way, San Diego, CA 92123
- Phone
- (858) 966-5944
- Enumerated
- Nov 13, 2006
- Record last updated
- Oct 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 00A833330 CA
- Medicare enrollment
- Enrolled (PECOS I20100311000401); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 3020 Childrens Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Blaine AbateMental Health Counselor1457684060
- Emily Abcede, ARNP, CPNPPediatric Nurse Practitioner1548654916
- Jason Adams, MD, PHDStudent in an Organized Health Care Education/Training Program1497507719
- Anneliese AdkinsOccupational Therapist1992904098
- Roxana Aghili, DOPediatrics Physician1851927883
- Natalie Aitchison, MDPsychiatry Physician1588876825
Verify Katayoon Shayan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A83333Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Rady Children's Hospital San DiegoSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katayoon Shayan among 1,554 anatomic pathology & clinical pathology physician records in California
Katayoon Shayan, M.D. is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 57% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1992 · median 2003 among the 891 with a school on file
- Record last updated2011 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in San Diego → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Cynthia Behling, MDSan Diego, CA 921231063476331
- Ardath Huffaker, MDSan Diego, CA 921231578527156
- Perry Jensen, MDSan Diego, CA 921231124080650
- Anand Kunda, M.D.San Diego, CA 921231346285897
- Sharon Longway, MDSan Diego, CA 921231871557330
- Arturo Mendoza, MDSan Diego, CA 921231649232182
- Jun Mo, M.D.San Diego, CA 921231952402786
- Wayne Muller, MDSan Diego, CA 921231376507384
Common questions
What is Katayoon Shayan, M.D.'s NPI number?
Katayoon Shayan, M.D.'s National Provider Identifier (NPI) is 1336210194, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katayoon Shayan, M.D. located?
The NPPES record lists a practice address at 3020 Childrens Way, San Diego, CA, 92123. Phone: (858) 966-5944. Providers update this record themselves, so call before visiting.
How can I verify Katayoon Shayan, M.D.'s license?
NPPES lists California license number A83333, 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.