Geoffrey Louis Phelan, MD
Family Medicine Physician · Palmdale, CA
Geoffrey Louis Phelan, MD is a family medicine physician with a practice address in Palmdale, California, and NPI 1053421016, issued on Aug 30, 2006. Check the license (California C36207, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Geoffrey Louis Phelan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C36207 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1220 E Avenue S, Palmdale, CA 93550
- Phone
- (661) 273-1445
- Enumerated
- Aug 30, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (661) 273-4943
- Medicaid ID
- 00C36207 CA
- Entity
- Type 1 · individual
Also registered at 1220 E Avenue S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suja Alexander, NPNurse Practitioner1083644439
- Theodore Brown, MDSpecialist1568580405
- Omid Mahgerefteh, D.C.Chiropractor1932212966
- Karina Razo, FNP-CFamily Nurse Practitioner1942745427
Verify Geoffrey Louis Phelan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C36207Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21 family medicine physician records list a practice address in Palmdale
They are 21 of the 2,077 NPPES records with a practice address in Palmdale, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 21 in Palmdale → All 17,133 in California → Every provider in Palmdale →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Geoffrey Louis Phelan, MD's NPI number?
Geoffrey Louis Phelan, MD's National Provider Identifier (NPI) is 1053421016, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey Louis Phelan, MD located?
The NPPES record lists a practice address at 1220 E Avenue S, Palmdale, CA, 93550. Phone: (661) 273-1445. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey Louis Phelan, MD's license?
NPPES lists California license number C36207, 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. 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.