Mario P. Demarco, MD
Family Medicine Physician · Philadelphia, PA
Mario P. Demarco, MD is a family medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1821291626, issued on Jun 8, 2007. Check the license (Pennsylvania MD440003, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mario P. Demarco
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD440003 PA
Self-reported in NPPES; status is on the state search - Practice location
- 51 North 39TH Street, Philadelphia, PA 19104
- Phone
- (215) 662-8777
- Enumerated
- Jun 8, 2007
- Record last updated
- Oct 7, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (215) 243-3290
- Medicaid ID
- 102480032 PA
- Medicare enrollment
- Enrolled (PECOS I20100804000209); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 51 North 39TH Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alan Askenase, MDCardiovascular Disease Physician1033141320
- Julianne Bagley, CRNACertified Registered Nurse Anesthetist1295482487
- Benjamin Braslow, MDTrauma Surgery Physician1518997071
- Theresa Campagna, CRNACertified Registered Nurse Anesthetist1801812540
- Stacey Cesarano, ODOptometrist1336437854
- Amy Cha, MDSurgery Physician1417157009
Verify Mario P. Demarco in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD440003Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average family medicine physician in 2024
1,232 Medicare Part D claims for 77 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 65 claims were for opioids.
Most prescribed
- Atorvastatin Calcium105 claims
- Albuterol Sulfate Hfa47 claims
- Metformin Hcl Er47 claims
- Amlodipine Besylate46 claims
- Omeprazole44 claims
- Hydrochlorothiazide37 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.
Bills Medicare through one group practice
- Trustees OF The University OF PennsylvaniaPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mario P. Demarco among 7,483 family medicine physician records in Pennsylvania
Mario P. Demarco, MD is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% 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 47% of them.
- NPI issued2007 · 47% of these records are older, 46% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2007 · median 2005 among the 4,529 with a school on file
- Record last updated2015 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
800 family medicine physician records list a practice address in Philadelphia
They are 800 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Philadelphia → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kristen Berry, DOPhiladelphia, PA 191041528069200
- Hillary Bogner, MDPhiladelphia, PA 191041841235462
- Patricia Boken, MDPhiladelphia, PA 191041376523977
- Kent Bream, MDPhiladelphia, PA 191041538196423
- James Corrigan, D.O.Philadelphia, PA 191041538157680
- Peter Cronholm, MDPhiladelphia, PA 191041841235504
- Monica Duvall, MDPhiladelphia, PA 191041982640157
- Daniel Francis, D.O.Philadelphia, PA 191041780623520
Common questions
What is Mario P. Demarco, MD's NPI number?
Mario P. Demarco, MD's National Provider Identifier (NPI) is 1821291626, issued on Jun 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mario P. Demarco, MD located?
The NPPES record lists a practice address at 51 North 39TH Street, Philadelphia, PA, 19104. Phone: (215) 662-8777. Providers update this record themselves, so call before visiting.
How can I verify Mario P. Demarco, MD's license?
NPPES lists Pennsylvania license number MD440003, 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 Mario P. Demarco, MD prescribe under Medicare Part D?
In 2024, Mario P. Demarco, MD had 1,232 Medicare Part D claims for 77 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.