Teresa Whitley, M.D.
NPI 1760496764 · Internal Medicine Physician · Fairfield, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Whitley, M.D. is a Internal Medicine Physician provider in Fairfield, CA (NPI 1760496764).
Provider details
- NPI number
- 1760496764
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A 65738 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Hospitals
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
921 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 355 | $145 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 279 | $104 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 99 | $147 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 64 | $17 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 30 | $63 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 290 | 73 |
| Atorvastatin Calcium | 240 | 74 |
| Amlodipine Besylate | 200 | 55 |
| Lisinopril | 150 | 44 |
| Losartan Potassium | 139 | 40 |
| Omeprazole | 132 | 42 |
| Albuterol Sulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2015-07-31
Frequently asked questions
- What is Teresa Whitley's NPI number?
- Teresa Whitley's National Provider Identifier (NPI) is 1760496764, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Whitley's specialty?
- Teresa Whitley is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Teresa Whitley located?
- Teresa Whitley's practice location on file with NPPES is 1860 Pennsylvania Ave, Fairfield, CA 94533-3590.
- What is Teresa Whitley's phone number?
- The practice phone number listed in the NPPES registry for Teresa Whitley is (707) 646-4100.
- Does Teresa Whitley accept Medicare?
- Teresa Whitley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Whitley's NPI active?
- Yes — Teresa Whitley's NPI (1760496764) is active in the NPPES registry as of the last update on 2015-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.