Roxana Calmac, M.D.
NPI 1306866900 · Internal Medicine Physician · Auburn, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roxana Calmac, M.D. is a Internal Medicine Physician provider in Auburn, CA (NPI 1306866900).
Provider details
- NPI number
- 1306866900
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A94362 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
685 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 254 | $121 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 184 | $117 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 121 | $80 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 77 | $176 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 26 | $132 |
| Critical Care, First 30-74 Minutes99291 | 23 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 29 | 14 |
| Prednisone | 24 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 20 | 19 |
| Cefdinir | 17 | 16 |
| Furosemide | 16 | 15 |
| Metoprolol Succinate | 14 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$155 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-20
- Last updated
- 2015-07-09
Frequently asked questions
- What is Roxana Calmac's NPI number?
- Roxana Calmac's National Provider Identifier (NPI) is 1306866900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roxana Calmac's specialty?
- Roxana Calmac is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Roxana Calmac located?
- Roxana Calmac's practice location on file with NPPES is 11815 Education Street, Auburn, CA 95602.
- What is Roxana Calmac's phone number?
- The practice phone number listed in the NPPES registry for Roxana Calmac is (530) 886-6558.
- Does Roxana Calmac accept Medicare?
- Roxana Calmac is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roxana Calmac's NPI active?
- Yes — Roxana Calmac's NPI (1306866900) is active in the NPPES registry as of the last update on 2015-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.