Aspen M. Calkins, DO
Internal Medicine Physician · Glendale, AZ
Aspen M. Calkins, DO is an internal medicine physician with a practice address in Glendale, Arizona, and NPI 1215299946, issued on Jun 8, 2012. Check the license (Arizona 006964, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Aspen M. Calkins
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 006964 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 8608 N 59TH Ave, Glendale, AZ 85302
- Phone
- (623) 979-2565
- Enumerated
- Jun 8, 2012
- Record last updated
- Jul 21, 2022
- Fax
- (623) 979-2463
- Medicare enrollment
- Enrolled (PECOS I20160729000959); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 8608 N 59TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Albertson, PA-CPhysician Assistant1477059012
- Scott Marquard, D.O.Family Medicine Physician1225399736
- Mickaela O'Neill, PA-CPhysician Assistant1306327234
- Christina Ohearn, PA-CPhysician Assistant1689452948
Verify Aspen M. Calkins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 006964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,899 Medicare Part D claims for 349 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium199 claims
- Rosuvastatin Calcium148 claims
- Levothyroxine Sodium138 claims
- Amlodipine Besylate105 claims
- Losartan Potassium97 claims
- Alendronate Sodium91 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.
Bills Medicare through one group practice
- Thunderbird Family Medicine LtdGlendale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
90 internal medicine physician records list a practice address in Glendale
They are 90 of the 5,447 NPPES records with a practice address in Glendale, and 2,853 internal medicine physician records in Arizona.
All 90 in Glendale → All 2,853 in Arizona → Every provider in Glendale →
Other internal medicine physician records in Arizona
- Daniel Aaronson, MDTucson, AZ1134865355
- Constantia Abarikwu, MDPhoenix, AZ1497832620
- Jaber Abawi, MDPayson, AZ1629038542
- Demsas Abay, MDPeoria, AZ1720312390
- Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
- Hassan Abbas, D.O.Mesa, AZ1477294775
- Jalal Abbas, M.D.Sun City West, AZ1205895034
- Tayeb Abbas, MDSun City West, AZ1093406795
- Hamed Abbaszadegan, MDPhoenix, AZ1407083579
- Kristopher Abbate, MDTucson, AZ1184112401
Common questions
What is Aspen M. Calkins, DO's NPI number?
Aspen M. Calkins, DO's National Provider Identifier (NPI) is 1215299946, issued on Jun 8, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Aspen M. Calkins, DO located?
The NPPES record lists a practice address at 8608 N 59TH Ave, Glendale, AZ, 85302. Phone: (623) 979-2565. Providers update this record themselves, so call before visiting.
How can I verify Aspen M. Calkins, DO's license?
NPPES lists Arizona license number 006964, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Aspen M. Calkins, DO prescribe under Medicare Part D?
In 2024, Aspen M. Calkins, DO had 2,899 Medicare Part D claims for 349 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.