Colleen L. Demirkan, PHARM.D.
Pharmacist · Arnold, MD
Colleen L. Demirkan, PHARM.D. is a pharmacist with a practice address in Arnold, Maryland, and NPI 1134404627, issued on Oct 15, 2011. Check the license (Maryland 20312, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Colleen L. Demirkan
- Credential
- PHARM.D.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 20312 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1460 Ritchie Hwy, Arnold, MD 21012
- Phone
- (443) 949-8373
- Enumerated
- Oct 15, 2011
- Record last updated
- Aug 7, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (443) 949-8375
- Entity
- Type 1 · individual
Also registered at 1460 Ritchie Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Scott Finlay, DDSGeneral Practice Dentistry1457384414
- Samuel GerthPharmacist1487046355
- Elias Inscoe, PHARMDPharmacist1033605464
Verify Colleen L. Demirkan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 20312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
59 Medicare Part D claims for 53 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Arexvy26 claims
- Shingrix19 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.
25 pharmacist records list a practice address in Arnold
They are 25 of the 307 NPPES records with a practice address in Arnold, and 5,562 pharmacist records in Maryland.
All 25 in Arnold → All 5,562 in Maryland → Every provider in Arnold →
Other pharmacist records in Maryland
- Nesriya Ababiya, PHARMDColumbia, MD1306362736
- Bernadette Abadejos, RPHSilver Spring, MD1477155406
- Kwasi AbankwahEllicott City, MD1982206322
- Nolawit AbaseranPikesville, MD1609446715
- Edom AbateSilver Spring, MD1598525313
- Tufa Abate, PHARMDKensington, MD1386044246
- Lanre AbayomiLaurel, MD1265958367
- Oluremi Abayomi, PHARM DUpper Marlboro, MD1699144378
- Oluwatosin Abayomi, PHARMDRockville, MD1558840405
- Irina AbazyanDistrict Heights, MD1952763765
Common questions
What is Colleen L. Demirkan, PHARM.D.'s NPI number?
Colleen L. Demirkan, PHARM.D.'s National Provider Identifier (NPI) is 1134404627, issued on Oct 15, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Colleen L. Demirkan, PHARM.D. located?
The NPPES record lists a practice address at 1460 Ritchie Hwy, Arnold, MD, 21012. Phone: (443) 949-8373. Providers update this record themselves, so call before visiting.
How can I verify Colleen L. Demirkan, PHARM.D.'s license?
NPPES lists Maryland license number 20312, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Colleen L. Demirkan, PHARM.D. prescribe under Medicare Part D?
In 2024, Colleen L. Demirkan, PHARM.D. had 59 Medicare Part D claims for 53 beneficiaries; the average among pharmacist prescribers was 119. 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.