Christopher John Mays, M.D.
Internal Medicine Physician · Olney, MD
Christopher John Mays, M.D. is an internal medicine physician with a practice address in Olney, Maryland, and NPI 1053306829, issued on Sep 16, 2005. Check the license (Maryland D0039793, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Christopher John Mays
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0039793 MD
Self-reported in NPPES; status is on the state search - Practice location
- 18111 Prince Philip Dr, Olney, MD 20832
- Phone
- (301) 774-7170
- Enumerated
- Sep 16, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (301) 774-6676
- Medicare enrollment
- Enrolled (PECOS I20090807000369); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Also registered at 18111 Prince Philip Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher John Mays in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0039793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% more Medicare Part D claims than the average internal medicine physician in 2024
6,248 Medicare Part D claims for 551 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 86 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium373 claims
- Atorvastatin Calcium274 claims
- Amlodipine Besylate222 claims
- Levothyroxine Sodium199 claims
- Lisinopril192 claims
- Synthroid190 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $20.67
1 payment: food and beverage; the largest payer was Astellas Pharma US 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.
Bills Medicare through 2 group practices
- Medstar Medical Group II LLCWashington, DC
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher John Mays among 3,904 internal medicine physician records in Maryland
Christopher John Mays, M.D. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1988 · median 2003 among the 2,445 with a school on file
- Record last updated2026 · 59% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 internal medicine physician records list a practice address in Olney
They are 27 of the 742 NPPES records with a practice address in Olney, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Olney → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dawn Broderick, M.D.Olney, MD 208321801899489
- Robert Fields, M.D.Olney, MD 208321578563292
- Philip Henjum, M.D.Olney, MD 208321295820215
- Daphna Henkin, MDOlney, MD 208321831160233
- John Herring, MDOlney, MD 208321710975040
- Emanuel Kokotakis, M.D.Olney, MD 208321255350278
- John Lodmell, M.D.Olney, MD 208321801899653
- Alok Mathur, MDOlney, MD 208321619035573
Common questions
What is Christopher John Mays, M.D.'s NPI number?
Christopher John Mays, M.D.'s National Provider Identifier (NPI) is 1053306829, issued on Sep 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Christopher John Mays, M.D. located?
The NPPES record lists a practice address at 18111 Prince Philip Dr, Olney, MD, 20832. Phone: (301) 774-7170. Providers update this record themselves, so call before visiting.
How can I verify Christopher John Mays, M.D.'s license?
NPPES lists Maryland license number D0039793, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher John Mays, M.D. prescribe under Medicare Part D?
In 2024, Christopher John Mays, M.D. had 6,248 Medicare Part D claims for 551 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Christopher John Mays, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.