John P. Mamana, M.D.
Internal Medicine Physician · Reston, VA
John P. Mamana, M.D. is an internal medicine physician with a practice address in Reston, Virginia, and NPI 1487654554, issued on Jul 29, 2005. Check the license (Virginia 0101021602, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- John P. Mamana
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101021602 VA
Self-reported in NPPES; status is on the state search - Practice location
- 12040 S Lakes Dr, Reston, VA 20191
- Phone
- (703) 230-6990
- Enumerated
- Jul 29, 2005
- Record last updated
- Mar 25, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (703) 230-6990
- Medicaid ID
- 5820308 VA
- Entity
- Type 1 · individual
Also registered at 12040 S Lakes Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Alfree, DNP, FNP-BCFamily Nurse Practitioner1831757533
- Robin Cohen, LCSWClinical Social Worker1942418876
- Aramesh Darvishian, DDSGeneral Practice Dentistry1922034206
- Kevin Kelleher, MDFamily Medicine Physician1689674202
- Laura Kennedy, RN, FNP-BCFamily Nurse Practitioner1760938161
- Deanna Markley, PAMedical Physician Assistant1821279381
Verify John P. Mamana in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101021602Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
331 Medicare Part D claims for 28 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Alprazolam26 claims
- Amlodipine Besylate23 claims
- Atorvastatin Calcium14 claims
- Hydrochlorothiazide12 claims
- Losartan Potassium12 claims
- Dexlansoprazole Dr11 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: $16.29
1 payment: food and beverage; the largest payer was Esperion Therapeutics, Inc. 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.
56 internal medicine physician records list a practice address in Reston
They are 56 of the 1,676 NPPES records with a practice address in Reston, and 3,599 internal medicine physician records in Virginia.
All 56 in Reston → All 3,599 in Virginia → Every provider in Reston →
Other internal medicine physician records in Virginia
- Caren Aaron, M.D.Martinsville, VA1477538734
- Mark Aarons, M.D.Arlington, VA1730371774
- Estefania Abasolo Lopez, MDManassas, VA1043899545
- Salma Abbas, MDRichmond, VA1427303387
- Amir AbbasiRichmond, VA1851233548
- Gohar Abbasi, MDChester, VA1134198187
- Mustafa Abbasi, MDAlexandria, VA1316019912
- Layla Abdal Hussain, MDWoobridge, VA1801036942
- Marwa Abdelfattah, M.D.Culpeper, VA1225251572
- Ramy Abdelfattah, M.D.Fredericksburg, VA1437525748
Common questions
What is John P. Mamana, M.D.'s NPI number?
John P. Mamana, M.D.'s National Provider Identifier (NPI) is 1487654554, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John P. Mamana, M.D. located?
The NPPES record lists a practice address at 12040 S Lakes Dr, Reston, VA, 20191. Phone: (703) 230-6990. Providers update this record themselves, so call before visiting.
How can I verify John P. Mamana, M.D.'s license?
NPPES lists Virginia license number 0101021602, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John P. Mamana, M.D. prescribe under Medicare Part D?
In 2024, John P. Mamana, M.D. had 331 Medicare Part D claims for 28 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.