Jennifer Hasa, M.D.
NPI 1982951851 · Family Medicine Physician · Sonoma, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Hasa, M.D. is a Family Medicine Physician provider in Sonoma, CA (NPI 1982951851).
Provider details
- NPI number
- 1982951851
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A162784 (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
13 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
86 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 55 | $10 |
| Urinalysis, Manual Test81002 | 18 | $3 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 13 | $7 |
Typical Medicare-allowed amounts for these services range $3–$10 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 89 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 328 | 105 |
| Lisinopril | 163 | 52 |
| Amlodipine Besylate | 143 | 48 |
| Levothyroxine Sodium | 140 | 39 |
| Losartan Potassium | 136 | 36 |
| Fluticasone Propionate | 87 | 41 |
| Albuterol Sulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-08-10
- Last updated
- 2023-03-07
- Certified
- 2021-07-27
Frequently asked questions
- What is Jennifer Hasa's NPI number?
- Jennifer Hasa's National Provider Identifier (NPI) is 1982951851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Hasa's specialty?
- Jennifer Hasa is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Hasa located?
- Jennifer Hasa's practice location on file with NPPES is 19270 Sonoma Highway, Sonoma, CA 95476.
- What is Jennifer Hasa's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Hasa is (707) 939-6070.
- Does Jennifer Hasa accept Medicare?
- Jennifer Hasa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Hasa's NPI active?
- Yes — Jennifer Hasa's NPI (1982951851) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.