Deirdre D. Ryan, MD
Orthopaedic Surgery Physician · Los Angeles, CA
Deirdre D. Ryan, MD is an orthopaedic surgery physician with a practice address in Los Angeles, California, and NPI 1982678025, issued on Feb 15, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Deirdre D. Ryan
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 36106998 IL
Self-reported in NPPES; status is on the state search - Practice location
- 4650 W Sunset Blvd # 69, Los Angeles, CA 90027
- Phone
- (323) 361-2450
- Enumerated
- Feb 15, 2006
- Record last updated
- Sep 8, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 36106998 IL
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 4650 W Sunset Blvd # 69
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Chung, PA-CPhysician Assistant1760019053
- Stephanie Lamer, M.D.Pediatric Orthopaedic Surgery Physician1235978735
- Nicholas Marigliano, PHYSICIAN ASSISTANTPhysician Assistant1659864403
Verify Deirdre D. Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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: $13.98
1 payment: food and beverage; the largest payer was Goode Surgical Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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.
Deirdre D. Ryan among 2,276 orthopaedic surgery physician records in California
Deirdre D. Ryan, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2008 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Los Angeles → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- David Apel, MDLos Angeles, CA 900271568553055
- Vincent Chen, M.DLos Angeles, CA 900271831197284
- Amirhesam Ehsan, M.DLos Angeles, CA 900271316163744
- Rachel Goldstein, MD, MPHLos Angeles, CA 900271831395557
- Nina Lightdale, M.D.Los Angeles, CA 900271316149636
- H. Michael Mynatt, MDLos Angeles, CA 900271326100207
- Duy Phan, MDLos Angeles, CA 900271538459730
- David Skaggs, MDLos Angeles, CA 900271245333061
Common questions
What is Deirdre D. Ryan, MD's NPI number?
Deirdre D. Ryan, MD's National Provider Identifier (NPI) is 1982678025, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Deirdre D. Ryan, MD located?
The NPPES record lists a practice address at 4650 W Sunset Blvd # 69, Los Angeles, CA, 90027. Phone: (323) 361-2450. Providers update this record themselves, so call before visiting.
How can I verify Deirdre D. Ryan, MD's license?
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.