Benjamin Oldach, DO
NPI 1366930893 · Family Medicine Physician · Auburn, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Oldach, DO is a Family Medicine Physician provider in Auburn, CA (NPI 1366930893).
Provider details
- NPI number
- 1366930893
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A16668 (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
8 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
50 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 30 | $134 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 20 | $179 |
Typical Medicare-allowed amounts for these services range $134–$179 (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 | 163 | 29 |
| Omeprazole | 109 | 19 |
| Amlodipine Besylate | 106 | 21 |
| Losartan Potassium | 100 | 19 |
| Lisinopril | 86 | 14 |
| Levothyroxine Sodium | 84 | 13 |
| Baclofen | 73 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-30
- Last updated
- 2020-09-02
- Certified
- 2020-09-02
Frequently asked questions
- What is Benjamin Oldach's NPI number?
- Benjamin Oldach's National Provider Identifier (NPI) is 1366930893, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Oldach's specialty?
- Benjamin Oldach is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Oldach located?
- Benjamin Oldach's practice location on file with NPPES is 11670 Atwood Rd, Auburn, CA 95603-9522.
- What is Benjamin Oldach's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Oldach is (530) 887-2800.
- Does Benjamin Oldach accept Medicare?
- Benjamin Oldach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Oldach's NPI active?
- Yes — Benjamin Oldach's NPI (1366930893) is active in the NPPES registry as of the last update on 2020-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.