Timothy S. Kowal, MD
Internal Medicine Physician · Hackensack, NJ
Timothy S. Kowal, MD is an internal medicine physician with a practice address in Hackensack, New Jersey, and NPI 1760626048, issued on Apr 30, 2009. Check the license (New Jersey 25MA09082500, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Timothy S. Kowal
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA09082500 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 321 Summit Ave, Hackensack, NJ 07601
- Phone
- (201) 343-2434
- Enumerated
- Apr 30, 2009
- Record last updated
- Aug 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (201) 343-3917
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 321 Summit Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Miriam Benoff, N.P.Nurse Practitioner1861504169
- Charles Davis, MDGeriatric Medicine (Internal Medicine) Physician1689641490
- Mordecai Wertheim, M.DInternal Medicine Physician1518088202
Verify Timothy S. Kowal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA09082500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
17 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Timothy S. Kowal among 4,632 internal medicine physician records in New Jersey
Timothy S. Kowal, MD is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% 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 64% of them.
- NPI issued2009 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2015 · 63% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
100 internal medicine physician records list a practice address in Hackensack
They are 100 of the 2,908 NPPES records with a practice address in Hackensack, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Hackensack → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carlos Cesar, MDHackensack, NJ 076011245286178
- Martin Chatelain, MDHackensack, NJ 076011538116611
- Michael Farber, MDHackensck, NJ 076011538107867
- Alan Felsen, M.D.Hackensack, NJ 076011619979317
- Morris Friedman, DOHackensack, NJ 076011013968783
- Adam Goldfarb, MDHackensack, NJ 076011275534174
- Galina Grigoryan, MDHackensack, NJ 076011619923067
- Vinita Manoraj, MDHackensack, NJ 076011295781664
Common questions
What is Timothy S. Kowal, MD's NPI number?
Timothy S. Kowal, MD's National Provider Identifier (NPI) is 1760626048, issued on Apr 30, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Timothy S. Kowal, MD located?
The NPPES record lists a practice address at 321 Summit Ave, Hackensack, NJ, 07601. Phone: (201) 343-2434. Providers update this record themselves, so call before visiting.
How can I verify Timothy S. Kowal, MD's license?
NPPES lists New Jersey license number 25MA09082500, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy S. Kowal, MD prescribe under Medicare Part D?
In 2024, Timothy S. Kowal, MD had 17 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.