Sonja Halterman
NPI 1639533474 · Family Medicine Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonja Halterman is a Family Medicine Physician provider in Sacramento, CA (NPI 1639533474).
Provider details
- NPI number
- 1639533474
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- A153525 (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
10 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
994 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 Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 717 | $121 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 200 | $119 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 77 | $80 |
Typical Medicare-allowed amounts for these services range $80–$121 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 24 | 23 |
| Apixabanbrand: Eliquis | 16 | 12 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 14 | 14 |
| Metoprolol Succinate | 14 | 11 |
| Atorvastatin Calcium | 13 | — |
| Prednisone | 12 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-07
- Last updated
- 2019-07-19
Frequently asked questions
- What is Sonja Halterman's NPI number?
- Sonja Halterman's National Provider Identifier (NPI) is 1639533474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Halterman's specialty?
- Sonja Halterman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sonja Halterman located?
- Sonja Halterman's practice location on file with NPPES is 1020 29th St Ste 480, Sacramento, CA 95816-5173.
- What is Sonja Halterman's phone number?
- The practice phone number listed in the NPPES registry for Sonja Halterman is (916) 733-3777.
- Does Sonja Halterman accept Medicare?
- Sonja Halterman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonja Halterman's NPI active?
- Yes — Sonja Halterman's NPI (1639533474) is active in the NPPES registry as of the last update on 2019-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.