Guy Teran, M.D.
NPI 1013992452 · Internal Medicine Physician · Ukiah, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guy Teran, M.D. is a Internal Medicine Physician provider in Ukiah, CA (NPI 1013992452).
Provider details
- NPI number
- 1013992452
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A53014 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
276 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 154 | $38 |
| Hemoglobin A1c Level83036 | 39 | $9 |
| Urinalysis, Manual Test81002 | 27 | $3 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 23 | $172 |
| Test for Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antibody, Qualitative Or Semiquantitative86328 | 20 | $44 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 164 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,020 | 248 |
| Levothyroxine Sodium | 539 | 108 |
| Amlodipine Besylate | 453 | 124 |
| Metformin Hcl | 425 | 110 |
| Benazepril Hcl | 415 | 112 |
| Empagliflozinbrand: Jardiance | 319 | 53 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-08
- Last updated
- 2010-04-22
Frequently asked questions
- What is Guy Teran's NPI number?
- Guy Teran's National Provider Identifier (NPI) is 1013992452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guy Teran's specialty?
- Guy Teran is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Guy Teran located?
- Guy Teran's practice location on file with NPPES is 260 Hospital Dr, Ukiah, CA 95482-4533.
- What is Guy Teran's phone number?
- The practice phone number listed in the NPPES registry for Guy Teran is (707) 463-8000.
- Does Guy Teran accept Medicare?
- Guy Teran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guy Teran's NPI active?
- Yes — Guy Teran's NPI (1013992452) is active in the NPPES registry as of the last update on 2010-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.