Sheldon Irwin Karabell, M.D.
Internal Medicine Physician · Warminster, PA
Sheldon Irwin Karabell, M.D. is an internal medicine physician with a practice address in Warminster, Pennsylvania, and NPI 1750340840, issued on Mar 20, 2006. Check the license (Pennsylvania MD010166E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Sheldon Irwin Karabell
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD010166E PA
Self-reported in NPPES; status is on the state search - Practice location
- 205 Newtown RD, Warminster, PA 18974
- Phone
- (215) 675-8847
- Enumerated
- Mar 20, 2006
- Record last updated
- Nov 7, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (215) 675-6534
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 205 Newtown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sheldon Irwin Karabell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD010166ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
53 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Sheldon Irwin Karabell among 7,300 internal medicine physician records in Pennsylvania
Sheldon Irwin Karabell, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 64% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2007 · 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).
10 internal medicine physician records list a practice address in Warminster
They are 10 of the 513 NPPES records with a practice address in Warminster, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Warminster → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Chalfin, MDWarminster, PA 189741841295318
- Matthew Goodman, MDWarminster, PA 189741679579767
- Vardhana Goswami, M.D.Warminster, PA 189741902835135
- Helen Khusid, D.O.Warminster, PA 189741962597963
- Michael Knapp, M.D.Warminster, PA 189741639179005
- Usha Marfatia, MDWarminster, PA 189741235109208
- Cynthia Shepard, M.D.Warminster, PA 189741295737013
- Mahshid Shirazi, MDWarminster, PA 189741952307340
Common questions
What is Sheldon Irwin Karabell, M.D.'s NPI number?
Sheldon Irwin Karabell, M.D.'s National Provider Identifier (NPI) is 1750340840, issued on Mar 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sheldon Irwin Karabell, M.D. located?
The NPPES record lists a practice address at 205 Newtown RD, Warminster, PA, 18974. Phone: (215) 675-8847. Providers update this record themselves, so call before visiting.
How can I verify Sheldon Irwin Karabell, M.D.'s license?
NPPES lists Pennsylvania license number MD010166E, 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 Sheldon Irwin Karabell, M.D. prescribe under Medicare Part D?
In 2024, Sheldon Irwin Karabell, M.D. had 53 Medicare Part D claims; 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.