Esther Debra Chernak, M.D.
Internal Medicine Physician · Philadelphia, PA
Esther Debra Chernak, M.D. is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1467785824, issued on Sep 16, 2009. Check the license (Pennsylvania MD043645E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Esther Debra Chernak
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD043645E PA
Self-reported in NPPES; status is on the state search - Practice location
- 555 S 43RD St, Philadelphia, PA 19104
- Phone
- (215) 685-7504
- Enumerated
- Sep 16, 2009
- Record last updated
- Sep 16, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (215) 685-7551
- Medicare enrollment
- Enrolled (PECOS I20091221000083); accepts Medicare assignment
- Medical or professional school
- Restview Chiropractic College, 1982
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 555 S 43RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Keimah Johnson, CRNPRegistered Nurse1861713935
- Fottfam Labouff, PA-CMedical Physician Assistant1770089930
- Kathryn Miller, MDPediatrics Physician1174880702
Verify Esther Debra Chernak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD043645ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,924 Medicare Part D claims for 45 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Biktarvy212 claims
- Rosuvastatin Calcium134 claims
- Metformin Hcl86 claims
- Atorvastatin Calcium72 claims
- Omeprazole65 claims
- Albuterol Sulfate Hfa56 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
- City OF PhiladelphiaPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Esther Debra Chernak among 7,300 internal medicine physician records in Pennsylvania
Esther Debra Chernak, M.D. 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 2009, is newer than 47% of them.
- NPI issued2009 · 47% of these records are older, 50% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1982 · median 2008 among the 4,208 with a school on file
- Record last updated2009 · 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
- Amy Behrman, MDPhiladelphia, PA 191041851331870
- Martin Bohnenkamp, MDPhiladelphia, PA 191041770528259
- John Bruza, MDPhiladelphia, PA 191041093758310
- Jill Clemmer, MDPhiladelphia, PA 191041477594562
- John Flamma, MDPhiladelphia, PA 191041477500296
- Kevin Fosnocht, MDPhiladelphia, PA 191041003842709
- William Gilhool, DOPhiladelphia, PA 191041982606919
- Bruce Kinosian, MDPhiladelphia, PA 191041871536177
Common questions
What is Esther Debra Chernak, M.D.'s NPI number?
Esther Debra Chernak, M.D.'s National Provider Identifier (NPI) is 1467785824, issued on Sep 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Esther Debra Chernak, M.D. located?
The NPPES record lists a practice address at 555 S 43RD St, Philadelphia, PA, 19104. Phone: (215) 685-7504. Providers update this record themselves, so call before visiting.
How can I verify Esther Debra Chernak, M.D.'s license?
NPPES lists Pennsylvania license number MD043645E, 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 Esther Debra Chernak, M.D. prescribe under Medicare Part D?
In 2024, Esther Debra Chernak, M.D. had 1,924 Medicare Part D claims for 45 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.