Roxana E. Calmac, M.D.
Internal Medicine Physician · Auburn, CA
Roxana E. Calmac, M.D. is an internal medicine physician with a practice address in Auburn, California, and NPI 1306866900, issued on Jul 20, 2006. Check the license (California A94362, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roxana E. Calmac
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A94362 CA
5892 SD
Self-reported in NPPES; status is on the state search - Practice location
- 11815 Education Street, Auburn, CA 95602
- Phone
- (530) 886-6558
- Enumerated
- Jul 20, 2006
- Record last updated
- Jul 9, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (530) 889-6035
- Medicare enrollment
- Enrolled (PECOS I20110413000912); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 11815 Education Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Roxana E. Calmac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94362Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average internal medicine physician in 2024
496 Medicare Part D claims for 173 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Eliquis29 claims
- Prednisone24 claims
- Amoxicillin-Clavulanate Potass20 claims
- Cefdinir17 claims
- Furosemide16 claims
- Clopidogrel14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $155.23
1 payment: food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sutter Valley Medical FoundationRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roxana E. Calmac among 17,696 internal medicine physician records in California
Roxana E. Calmac, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 11,065 with a school on file
- Record last updated2015 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 internal medicine physician records list a practice address in Auburn
They are 31 of the 1,392 NPPES records with a practice address in Auburn, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Auburn → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Alan Michel, M.D.Auburn, CA 956021821047887
- Jose Miranda, M.D.Auburn, CA 956021679616437
- Sujata Narayanan, M.DAuburn, CA 956021104022854
- Neil Nedley, MDAuburn, CA 956021952336059
Common questions
What is Roxana E. Calmac, M.D.'s NPI number?
Roxana E. Calmac, M.D.'s National Provider Identifier (NPI) is 1306866900, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roxana E. Calmac, M.D. located?
The NPPES record lists a practice address at 11815 Education Street, Auburn, CA, 95602. Phone: (530) 886-6558. Providers update this record themselves, so call before visiting.
How can I verify Roxana E. Calmac, M.D.'s license?
NPPES lists California license number A94362, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Roxana E. Calmac, M.D. prescribe under Medicare Part D?
In 2024, Roxana E. Calmac, M.D. had 496 Medicare Part D claims for 173 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.