Donald Westbie, M.D.
Endocrinology, Diabetes & Metabolism Physician · Sonora, CA
Donald Westbie, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Sonora, California, and NPI 1912984436, issued on Dec 27, 2005. Check the license (California A25918, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Donald Westbie
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A25918 CA
Self-reported in NPPES; status is on the state search - Practice location
- 680 Guzzi LN, Sonora, CA 95370
- Phone
- (209) 536-5790
- Enumerated
- Dec 27, 2005
- Record last updated
- Nov 26, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (209) 536-3593
- Medicare enrollment
- Enrolled (PECOS I20040407000516); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1970
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 680 Guzzi LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deanna Fossen, NPFamily Nurse Practitioner1487104899
- Choo Lee, M.D.Specialist1649271818
- Lawrence Mier, MDSurgery Physician1841292281
- Airell Nygaard, M.D.Orthopaedic Surgery Physician1417920760
Verify Donald Westbie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A25918Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,002 Medicare Part D claims for 361 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Jardiance282 claims
- Levothyroxine Sodium275 claims
- Metformin Hcl191 claims
- Ozempic187 claims
- Atorvastatin Calcium104 claims
- Glimepiride96 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $369.73
16 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Bills Medicare through one group practice
- Sonora Community HospitalSonora, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Donald Westbie among 1,131 endocrinology, diabetes & metabolism physician records in California
Donald Westbie, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1970 · median 2003 among the 779 with a school on file
- Record last updated2014 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Sonora → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Rochelle Villanueva, MDSonora, CA 953701932143062
- Amit Bhargava, MDModesto, CA 953561306096698
- Teresa Jacques, MDModesto, CA 953561831261650
- Deepthi Rimmalapudi, M.D.Modesto, CA 953561417308693
- Myet Mon ZinModesto, CA 953561912439563
- George Chao, MDModesto, CA 953551548204506
- Wen Han, M.D.Modesto, CA 953551104020312
- Celina Hetnal, MDModesto, CA 953551831156389
Common questions
What is Donald Westbie, M.D.'s NPI number?
Donald Westbie, M.D.'s National Provider Identifier (NPI) is 1912984436, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Donald Westbie, M.D. located?
The NPPES record lists a practice address at 680 Guzzi LN, Sonora, CA, 95370. Phone: (209) 536-5790. Providers update this record themselves, so call before visiting.
How can I verify Donald Westbie, M.D.'s license?
NPPES lists California license number A25918, 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 Donald Westbie, M.D. prescribe under Medicare Part D?
In 2024, Donald Westbie, M.D. had 3,002 Medicare Part D claims for 361 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Donald Westbie, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.