Mary Ann Riley, D.O.
Internal Medicine Physician · Lavale, MD
Mary Ann Riley, D.O. is an internal medicine physician with a practice address in Lavale, Maryland, and NPI 1174736441, issued on May 7, 2007. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Mary Ann Riley
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2205 WV
Self-reported in NPPES; status is on the state search - Practice location
- 1313 National Hwy, Lavale, MD 21502
- Phone
- (240) 362-0288
- Enumerated
- May 7, 2007
- Record last updated
- Jan 7, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (240) 362-0052
- Medicare enrollment
- Enrolled (PECOS I20150225002061); accepts Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 2005
- 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 1313 National Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Ann Riley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% more Medicare Part D claims than the average internal medicine physician in 2024
5,872 Medicare Part D claims for 735 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. 63 claims were for opioids.
Most prescribed
- Levothyroxine Sodium373 claims
- Atorvastatin Calcium296 claims
- Lisinopril250 claims
- Amlodipine Besylate209 claims
- Losartan Potassium170 claims
- Metoprolol Succinate161 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): 86.9 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: $13.50
1 payment: food and beverage; the largest payer was Lilly USA, LLC. 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
- Upmc Western Maryland Health Services LLCCumberland, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Ann Riley among 3,904 internal medicine physician records in Maryland
Mary Ann Riley, D.O. 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 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 44% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2003 among the 2,445 with a school on file
- Record last updated2015 · 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).
Internal Medicine Physician providers in Maryland
There are 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Lavale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robustiano Barrera, M.D.Cumberland, MD 215021033187000
- Thomas Chappell, MDCumberland, MD 215021558364927
- Gregg Donaldson, MDCumberland, MD 215021114920576
- Renato Espina, M.D.Cumberland, MD 215021427059773
- Sunil Gupta, MDCumberland, MD 215021093886657
- Ava Joubert, MDCumberland, MD 215021083624522
- Shiv Khanna, MDCumberland, MD 215021538241153
- Jose Loveria, MDCumberland, MD 215021689677908
Common questions
What is Mary Ann Riley, D.O.'s NPI number?
Mary Ann Riley, D.O.'s National Provider Identifier (NPI) is 1174736441, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ann Riley, D.O. located?
The NPPES record lists a practice address at 1313 National Hwy, Lavale, MD, 21502. Phone: (240) 362-0288. Providers update this record themselves, so call before visiting.
How can I verify Mary Ann Riley, D.O.'s license?
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 Mary Ann Riley, D.O. prescribe under Medicare Part D?
In 2024, Mary Ann Riley, D.O. had 5,872 Medicare Part D claims for 735 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mary Ann Riley, D.O.'s MIPS final score?
The 2023 MIPS final score is 86.9 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.