Mary C. Davies, MD
Internal Medicine Physician · Harrisburg, PA
Mary C. Davies, MD is an internal medicine physician with a practice address in Harrisburg, Pennsylvania, and NPI 1831113620, issued on Jul 26, 2006. Check the license (Pennsylvania MD429252, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mary C. Davies
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD429252 PA
Self-reported in NPPES; status is on the state search - Practice location
- 805 Sir Thomas CT FL 1, Harrisburg, PA 17109
- Phone
- (717) 988-0020
- Enumerated
- Jul 26, 2006
- Record last updated
- May 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (717) 703-5746
- Medicare enrollment
- Enrolled (PECOS I20061109000215); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 805 Sir Thomas CT FL 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tonya Putt, CRNPFamily Nurse Practitioner1801468749
- Stacey Rotz, PA-CPhysician Assistant1437339702
Verify Mary C. Davies in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD429252Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average internal medicine physician in 2024
9,066 Medicare Part D claims for 580 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. 280 claims were for opioids.
Most prescribed
- Atorvastatin Calcium452 claims
- Amlodipine Besylate420 claims
- Losartan Potassium333 claims
- Levothyroxine Sodium289 claims
- Lisinopril287 claims
- Omeprazole246 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): 82.5 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).
Bills Medicare through one group practice
- Pinnacle Health Medical ServicesHarrisburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary C. Davies among 7,300 internal medicine physician records in Pennsylvania
Mary C. Davies, MD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 64% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2001 · median 2008 among the 4,208 with a school on file
- Record last updated2021 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
184 internal medicine physician records list a practice address in Harrisburg
They are 184 of the 3,963 NPPES records with a practice address in Harrisburg, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Harrisburg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lawrence Appel, MDHarrisburg, PA 171091952375453
- Jeffrey Backenstoes, D.O.Harrisburg, PA 171091215985270
- Sevdalina Boshnakov, MDHarrisburg, PA 171091710090212
- David Bronstein, DOHarrisburg, PA 171091194758094
- Brian Deramo, DOHarrisburg, PA 171091427088525
- John Freshman, MDHarrisburg, PA 171091659330074
- Charles Gerlach, M.D.Harrisburg, PA 171091053369447
- Steven Heckenluber, DOHarrisburg, PA 171091477513455
Common questions
What is Mary C. Davies, MD's NPI number?
Mary C. Davies, MD's National Provider Identifier (NPI) is 1831113620, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary C. Davies, MD located?
The NPPES record lists a practice address at 805 Sir Thomas CT FL 1, Harrisburg, PA, 17109. Phone: (717) 988-0020. Providers update this record themselves, so call before visiting.
How can I verify Mary C. Davies, MD's license?
NPPES lists Pennsylvania license number MD429252, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary C. Davies, MD prescribe under Medicare Part D?
In 2024, Mary C. Davies, MD had 9,066 Medicare Part D claims for 580 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mary C. Davies, MD's MIPS final score?
The 2023 MIPS final score is 82.5 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.