Erin Marie Fly, D.O.
Internal Medicine Physician · Quakertown, PA
Erin Marie Fly, D.O. is an internal medicine physician with a practice address in Quakertown, Pennsylvania, and NPI 1477542512, issued on Oct 20, 2005. Check the license (Pennsylvania OS005850L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Erin Marie Fly
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS005850L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1021 Park Ave, Quakertown, PA 18951
- Phone
- (215) 538-1111
- Enumerated
- Oct 20, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (215) 538-2166
- Medicaid ID
- 1165293 PA
- Medicare enrollment
- Enrolled (PECOS I20101122001268); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1985
- 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 1021 Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gerrianne Burke, M.D.Internal Medicine Physician1689664542
- Joseph Campbell, DPMFoot & Ankle Surgery Podiatrist1346249208
- Donna Dispas-Gebert, R.D.,CDE,LDNRegistered Dietitian1831204437
- Christine Dorsey, PAMedical Physician Assistant1457479412
Verify Erin Marie Fly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS005850LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average internal medicine physician in 2024
10,444 Medicare Part D claims for 725 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. 322 claims were for opioids.
Most prescribed
- Atorvastatin Calcium544 claims
- Levothyroxine Sodium489 claims
- Amlodipine Besylate406 claims
- Rosuvastatin Calcium338 claims
- Furosemide317 claims
- Metoprolol Succinate275 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 MIPS final score for 2023 (Medicare payment program): 95.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- St Lukes Physician Group IncBethlehem, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Marie Fly among 7,300 internal medicine physician records in Pennsylvania
Erin Marie Fly, D.O. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1985 · median 2008 among the 4,208 with a school on file
- Record last updated2026 · 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).
11 internal medicine physician records list a practice address in Quakertown
They are 11 of the 556 NPPES records with a practice address in Quakertown, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Quakertown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dalia Alkhawaga, MDQuakertown, PA 189511093451197
- Cira Amenta, DOQuakertown, PA 189511770552762
- Csaba Berces, M.D.Quakertown, PA 189511982694840
- Gerrianne Burke, M.D.Quakertown, PA 189511689664542
- Douglas Harr, M.D.Quakertown, PA 189511538466073
- Stacy HatchQuakertown, PA 189511023759941
- Jon Schwartz, M.D.Quakertown, PA 189511346230174
- Amanda Semonche, DOQuakertown, PA 189511003000530
Common questions
What is Erin Marie Fly, D.O.'s NPI number?
Erin Marie Fly, D.O.'s National Provider Identifier (NPI) is 1477542512, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Erin Marie Fly, D.O. located?
The NPPES record lists a practice address at 1021 Park Ave, Quakertown, PA, 18951. Phone: (215) 538-1111. Providers update this record themselves, so call before visiting.
How can I verify Erin Marie Fly, D.O.'s license?
NPPES lists Pennsylvania license number OS005850L, 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 Erin Marie Fly, D.O. prescribe under Medicare Part D?
In 2024, Erin Marie Fly, D.O. had 10,444 Medicare Part D claims for 725 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Erin Marie Fly, D.O.'s MIPS final score?
The 2023 MIPS final score is 95.6 of 100. 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.