William Robert Crumpton, M,D.
Family Medicine Physician · Tustin, CA
William Robert Crumpton, M,D. is a family medicine physician with a practice address in Tustin, California, and NPI 1205989373, issued on Jan 19, 2007. Check the license (California G27062A, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Robert Crumpton
- Credential
- M,D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G27062A CA
Self-reported in NPPES; status is on the state search - Practice location
- 14642 Newport Ave, Tustin, CA 92780
- Phone
- (714) 669-4466
- Enumerated
- Jan 19, 2007
- Record last updated
- Oct 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (714) 669-4088
- Entity
- Type 1 · individual
Also registered at 14642 Newport Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carolyn Calma, P.A.-CPhysician Assistant1427250844
- Fareed EntezarPharmacist1619443835
- Emerson Jou, M.D.Physical Medicine & Rehabilitation Physician1275648156
- Anjala Kanda, DPMFoot & Ankle Surgery Podiatrist1174577654
- Tariq Khan, M.D.Internal Medicine Physician1295925253
- Valeria Kozak, MDPediatrics Physician1720057516
Verify William Robert Crumpton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G27062ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
164 Medicare Part D claims for 12 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Levothyroxine Sodium16 claims
- Amlodipine Besylate12 claims
- Belsomra12 claims
- Sertraline Hcl12 claims
- Rosuvastatin Calcium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
42 family medicine physician records list a practice address in Tustin
They are 42 of the 2,221 NPPES records with a practice address in Tustin, and 17,133 family medicine physician records in California.
All 42 in Tustin → All 17,133 in California → Every provider in Tustin →
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 William Robert Crumpton, M,D.'s NPI number?
William Robert Crumpton, M,D.'s National Provider Identifier (NPI) is 1205989373, issued on Jan 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Robert Crumpton, M,D. located?
The NPPES record lists a practice address at 14642 Newport Ave, Tustin, CA, 92780. Phone: (714) 669-4466. Providers update this record themselves, so call before visiting.
How can I verify William Robert Crumpton, M,D.'s license?
NPPES lists California license number G27062A, 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.
How much does William Robert Crumpton, M,D. prescribe under Medicare Part D?
In 2024, William Robert Crumpton, M,D. had 164 Medicare Part D claims for 12 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.