William Carter Heppenstall
Internal Medicine Physician · Philadelphia, PA
William Carter Heppenstall is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1023558400, issued on Mar 3, 2017. Check the license (Pennsylvania OS020531, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- William Carter Heppenstall
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS020531 PA
Self-reported in NPPES; status is on the state search - Practice location
- 101 E Olney Ave Ste C5, Philadelphia, PA 19120
- Phone
- (215) 927-1937
- Enumerated
- Mar 3, 2017
- Record last updated
- Jul 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (215) 456-6240
- Medicaid ID
- OS020531 PA
- Medicare enrollment
- Enrolled (PECOS I20210719000695); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2017
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 101 E Olney Ave Ste C5
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dalia Amrom, MDInternal Medicine Physician1700404472
- Suleiman Khreshi, MDInternal Medicine Physician1255063103
- Hung PhamInternal Medicine Physician1033650023
Verify William Carter Heppenstall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS020531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.4 times the Medicare Part D claims of the average internal medicine physician in 2024
23,462 Medicare Part D claims for 908 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 318 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,396 claims
- Albuterol Sulfate Hfa793 claims
- Amlodipine Besylate700 claims
- Gabapentin687 claims
- Losartan Potassium641 claims
- Fluticasone Propionate578 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.
Industry payments in 2024: $3,715.21
187 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Einstein Community Health Associates IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Carter Heppenstall among 7,300 internal medicine physician records in Pennsylvania
William Carter Heppenstall 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 2017, is newer than 68% of them.
- NPI issued2017 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2017 · 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).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mushtaq Ahmad, MDPhiladelphia, PA 191201932148723
- Dalia Amrom, MDPhiladelphia, PA 191201700404472
- David Duong, M.D.Philadelphia, PA 191201184883308
- Kenneth Hoellein, MDPhiladelphia, PA 191201720047277
- Lisa Keiner, DOPhiladelphia, PA 191201497865497
- Suleiman Khreshi, MDPhiladelphia, PA 191201255063103
- Kenneth Nguyen, M.D.Philadelphia, PA 191201568460103
- Truong Nguyen, DOPhiladelphia, PA 191201528145208
Common questions
What is William Carter Heppenstall's NPI number?
William Carter Heppenstall's National Provider Identifier (NPI) is 1023558400, issued on Mar 3, 2017. An NPI identifies a provider in billing; it is not a license.
Where is William Carter Heppenstall located?
The NPPES record lists a practice address at 101 E Olney Ave Ste C5, Philadelphia, PA, 19120. Phone: (215) 927-1937. Providers update this record themselves, so call before visiting.
How can I verify William Carter Heppenstall's license?
NPPES lists Pennsylvania license number OS020531, 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 William Carter Heppenstall prescribe under Medicare Part D?
In 2024, William Carter Heppenstall had 23,462 Medicare Part D claims for 908 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.