Raphael Howard Karkowsky, MD
Internal Medicine Physician · Philadelphia, PA
Raphael Howard Karkowsky, MD is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1194082164, issued on Apr 16, 2012. Check the license (Pennsylvania MD454446, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Raphael Howard Karkowsky
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD454446 PA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Walnut St, Philadelphia, PA 19107
- Phone
- (215) 829-3523
- Enumerated
- Apr 16, 2012
- Record last updated
- May 26, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150608002093); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2012
- 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 800 Walnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raza Ahmad, MDSports Medicine (Internal Medicine) Physician1558631713
- David Ain, M.D.Cardiovascular Disease Physician1730349234
- Hania Bajwa, MDFamily Medicine Physician1285984369
- Yana Banerjee, NPAdult Health Nurse Practitioner1447597695
- Kristen BorzomatiAdult Health Nurse Practitioner1578004693
- William Brady, MDInternal Medicine Physician1831187731
Verify Raphael Howard Karkowsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD454446Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average internal medicine physician in 2024
5,151 Medicare Part D claims for 472 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 35 claims were for opioids.
Most prescribed
- Atorvastatin Calcium465 claims
- Amlodipine Besylate274 claims
- Rosuvastatin Calcium218 claims
- Omeprazole170 claims
- Levothyroxine Sodium143 claims
- Metoprolol Succinate131 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: $52.74
3 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. 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
- Clinical Care Associates OF The University OF Pennsylvania Health.Yardley, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Raphael Howard Karkowsky among 7,300 internal medicine physician records in Pennsylvania
Raphael Howard Karkowsky, MD 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 2012, is newer than 55% of them.
- NPI issued2012 · 55% of these records are older, 43% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2012 · median 2008 among the 4,208 with a school on file
- Record last updated2015 · 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
- William Brady, MDPhiladelphia, PA 191071831187731
- Eileen Carpenter, MDPhiladelphia, PA 191071205805827
- Lillian Cohn, M.D.Philadelphia, PA 191071538160825
- Allan Crimm, M.D.Philadelphia, PA 191071720089170
- Lewis Deeugenio, M.D.Philadelphia, PA 191071780664847
- Richard Feldman, MDPhiladelphia, PA 191071417958661
- Jane Fitzpatrick, MDPhiladelphia, PA 191071003880675
- Zuleika Font, M.D.Philadelphia, PA 191071760483945
Common questions
What is Raphael Howard Karkowsky, MD's NPI number?
Raphael Howard Karkowsky, MD's National Provider Identifier (NPI) is 1194082164, issued on Apr 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Raphael Howard Karkowsky, MD located?
The NPPES record lists a practice address at 800 Walnut St, Philadelphia, PA, 19107. Phone: (215) 829-3523. Providers update this record themselves, so call before visiting.
How can I verify Raphael Howard Karkowsky, MD's license?
NPPES lists Pennsylvania license number MD454446, 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 Raphael Howard Karkowsky, MD prescribe under Medicare Part D?
In 2024, Raphael Howard Karkowsky, MD had 5,151 Medicare Part D claims for 472 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.