NPPES file of Aug 9, 2026

Krzysztof Warszawski, M.D.

Internal Medicine Physician · Garden City, MI

Krzysztof Warszawski, M.D. is an internal medicine physician with a practice address in Garden City, Michigan, and NPI 1295711935, issued on Dec 15, 2005. Check the license (Michigan 4301061381, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295711935
Name
Krzysztof Warszawski
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4301061381 MI
Self-reported in NPPES; status is on the state search
Practice location
2011 Middlebelt RD, Garden City, MI 48135
Phone
(734) 261-1380
Enumerated
Dec 15, 2005
Record last updated
Feb 18, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(734) 261-0133
Medicaid ID
1295711935 MI
Medicare enrollment
Enrolled (PECOS I20040920000494); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2011 Middlebelt RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sandeep Sohal, MDGeneral Practice Physician1992833206

Verify Krzysztof Warszawski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301061381
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% more Medicare Part D claims than the average internal medicine physician in 2024

5,656 Medicare Part D claims for 265 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 238 claims were for opioids.

  1. Krzysztof Warszawski5,656
  2. Specialty average3,176

Most prescribed

  1. Losartan Potassium329 claims
  2. Rosuvastatin Calcium316 claims
  3. Atorvastatin Calcium270 claims
  4. Levothyroxine Sodium258 claims
  5. Amlodipine Besylate181 claims
  6. Metoprolol Tartrate167 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: $45.68

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.

  1. Krzysztof Warszawski$45.68
  2. Specialty average$1,303.06

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

  1. Michigan Healthcare Professionals PCDearborn, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Krzysztof Warszawski among 5,735 internal medicine physician records in Michigan

Krzysztof Warszawski, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1985 · median 2006 among the 3,564 with a school on file
  • Record last updated2011 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 internal medicine physician records list a practice address in Garden City

They are 37 of the 551 NPPES records with a practice address in Garden City, and 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Donald Clark, P.A.-CGarden City, MI 481351386669570
  2. Christopher Doig, D.O.Garden City, MI 481351942258199
  3. Suryakumari Guthikonda, M.D.Garden City, MI 481351043264120
  4. Brittany Harrington, D.O.Garden City, MI 481351063849503
  5. Ali Jaber, M.D.Garden City, MI 481351285975250
  6. Sujata Kambhatla, MDGarden City, MI 481351376679514
  7. Zachary Lemon, D.O.Garden City, MI 481351740497510
  8. Joseph Palazeti, D.O.Garden City, MI 481351316398449

Common questions

What is Krzysztof Warszawski, M.D.'s NPI number?

Krzysztof Warszawski, M.D.'s National Provider Identifier (NPI) is 1295711935, issued on Dec 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Krzysztof Warszawski, M.D. located?

The NPPES record lists a practice address at 2011 Middlebelt RD, Garden City, MI, 48135. Phone: (734) 261-1380. Providers update this record themselves, so call before visiting.

How can I verify Krzysztof Warszawski, M.D.'s license?

NPPES lists Michigan license number 4301061381, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Krzysztof Warszawski, M.D. prescribe under Medicare Part D?

In 2024, Krzysztof Warszawski, M.D. had 5,656 Medicare Part D claims for 265 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.