Maria C. Demario, DO
Family Medicine Physician · Newtown Square, PA
Maria C. Demario, DO is a family medicine physician with a practice address in Newtown Square, Pennsylvania, and NPI 1891792768, issued on Jul 7, 2005. Check the license (Pennsylvania OS007668L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Maria C. Demario
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS007668L PA
Self-reported in NPPES; status is on the state search - Practice location
- 4667 W Chester Pike, Newtown Square, PA 19073
- Phone
- (610) 356-7870
- Enumerated
- Jul 7, 2005
- Record last updated
- Feb 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (610) 594-2625
- Medicaid ID
- 0007049930005 PA
- Medicare enrollment
- Enrolled (PECOS I20100618000024); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 4667 W Chester Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tiffany Giltner, CRNPFamily Nurse Practitioner1720313190
- Joy Heller, DOFamily Medicine Physician1861487035
- Monique Junker, CRNPFamily Nurse Practitioner1639947781
- Patricia Montgomery, MDFamily Medicine Physician1548292873
Verify Maria C. Demario in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS007668LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average family medicine physician in 2024
5,716 Medicare Part D claims for 526 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 40 claims were for opioids.
Most prescribed
- Atorvastatin Calcium426 claims
- Rosuvastatin Calcium381 claims
- Levothyroxine Sodium258 claims
- Lisinopril197 claims
- Amlodipine Besylate189 claims
- Losartan Potassium188 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
- Pentahealth, LLCNewtown Square, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria C. Demario among 7,483 family medicine physician records in Pennsylvania
Maria C. Demario, DO 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1991 · median 2005 among the 4,529 with a school on file
- Record last updated2018 · 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).
20 family medicine physician records list a practice address in Newtown Square
They are 20 of the 425 NPPES records with a practice address in Newtown Square, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Newtown Square → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joseph Berrang, MDNewtown Square, PA 190731659459196
- Anthony Cincotta, DONewtown Square, PA 190731730145293
- Jacqueline Ewing, D.O.Newtown Square, PA 190731740269018
- Sharon Fleischer, M.D.Newtown Square, PA 190731104828672
- David Fox, MDNewtown Square, PA 190731215978549
- Joseph Graham, MDNewtown Square, PA 190731881790855
- Joy Heller, DONewtown Square, PA 190731861487035
- David Jones, D.O.Newtown Square, PA 190731316949662
Common questions
What is Maria C. Demario, DO's NPI number?
Maria C. Demario, DO's National Provider Identifier (NPI) is 1891792768, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Maria C. Demario, DO located?
The NPPES record lists a practice address at 4667 W Chester Pike, Newtown Square, PA, 19073. Phone: (610) 356-7870. Providers update this record themselves, so call before visiting.
How can I verify Maria C. Demario, DO's license?
NPPES lists Pennsylvania license number OS007668L, 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 Maria C. Demario, DO prescribe under Medicare Part D?
In 2024, Maria C. Demario, DO had 5,716 Medicare Part D claims for 526 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.