Guy Teran, M.D.
Internal Medicine Physician · Ukiah, CA
Guy Teran, M.D. is an internal medicine physician with a practice address in Ukiah, California, and NPI 1013992452, issued on Dec 8, 2005. Check the license (California A53014, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Guy Teran
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A53014 CA
Self-reported in NPPES; status is on the state search - Practice location
- 260 Hospital Dr, Ukiah, CA 95482
- Phone
- (707) 463-8000
- Enumerated
- Dec 8, 2005
- Record last updated
- Apr 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (707) 462-1111
- Medicaid ID
- 00A530140 CA
- Medicare enrollment
- Enrolled (PECOS I20070626000491); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1985
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 260 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cara Eberhardt, MDAddiction Medicine (Family Medicine) Physician1174151450
- Samuel Goldberg, M.D.Pediatrics Physician1821072653
Verify Guy Teran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A53014Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average internal medicine physician in 2024
11,709 Medicare Part D claims for 583 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 342 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,020 claims
- Levothyroxine Sodium539 claims
- Amlodipine Besylate453 claims
- Metformin Hcl425 claims
- Benazepril Hcl415 claims
- Jardiance319 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.
Bills Medicare through one group practice
- Mendocino Community Health Clinic IncUkiah, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guy Teran among 17,696 internal medicine physician records in California
Guy Teran, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1985 · median 2004 among the 11,065 with a school on file
- Record last updated2010 · 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 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Ukiah → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sarah Alvord, M.D.Ukiah, CA 954821831402619
- Jessica Asirwatham, MDUkiah, CA 954821114504529
- Roger Cheitlin, MDUkiah, CA 954821881643732
- Iyad Hanna, MDUkiah, CA 954821326250077
- Russell Hardy, M.D.Ukiah, CA 954821558345348
- Bernard Lemke, M.D., M.A.Ukiah, CA 954821831174697
- Linda Mulligan, M.D.Ukiah, CA 954821144331463
- Marvin Trotter, MDUkiah, CA 954821720027436
Common questions
What is Guy Teran, M.D.'s NPI number?
Guy Teran, M.D.'s National Provider Identifier (NPI) is 1013992452, issued on Dec 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Guy Teran, M.D. located?
The NPPES record lists a practice address at 260 Hospital Dr, Ukiah, CA, 95482. Phone: (707) 463-8000. Providers update this record themselves, so call before visiting.
How can I verify Guy Teran, M.D.'s license?
NPPES lists California license number A53014, 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 Guy Teran, M.D. prescribe under Medicare Part D?
In 2024, Guy Teran, M.D. had 11,709 Medicare Part D claims for 583 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.