Stephen T. Nitz, M.D.
Family Medicine Physician · Rockford, IL
Stephen T. Nitz, M.D. is a family medicine physician with a practice address in Rockford, Illinois, and NPI 1518958651, issued on Oct 28, 2005. Check the license (Illinois 036105695, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Stephen T. Nitz
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036105695 IL
57636 WI
Self-reported in NPPES; status is on the state search - Practice location
- 7177 Crimson Ridge Dr, Rockford, IL 61107
- Phone
- (815) 734-6061
- Enumerated
- Oct 28, 2005
- Record last updated
- Dec 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (815) 734-9021
- Medicaid ID
- 036105695 IL
- Medicare enrollment
- Enrolled (PECOS I20080208000211); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1999
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 7177 Crimson Ridge Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cassandra AkerBehavior Analyst1699251934
- Jeanie Burke, RDRegistered Dietitian1619122835
- Crystal DollingerBehavior Technician1912658725
Verify Stephen T. Nitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036105695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average family medicine physician in 2024
869 Medicare Part D claims for 166 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Levothyroxine Sodium168 claims
- Liothyronine Sodium155 claims
- Progesterone60 claims
- Valacyclovir29 claims
- Anastrozole24 claims
- Spironolactone23 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: $70.21
4 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 55,478 providers of this specialty with any payment received $902.55 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.
Stephen T. Nitz among 6,215 family medicine physician records in Illinois
Stephen T. Nitz, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1999 · median 2006 among the 3,714 with a school on file
- Record last updated2019 · 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 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
145 family medicine physician records list a practice address in Rockford
They are 145 of the 3,893 NPPES records with a practice address in Rockford, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Rockford → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Diana Alanis, MDRockford, IL 611071922007418
- Joy Deleoz, MDRockford, IL 611071083697171
- Steven Diamond, MDRockford, IL 611071861481244
- Chantal Girod, MDRockford, IL 611071881620383
- John Holtan, MDRockford, IL 611071831127224
- William Kobler, MDRockford, IL 611071588693626
- Steven Lidvall, MDRockford, IL 611071013946649
- Arpana Mathur, MDRockford, IL 611071023090560
Common questions
What is Stephen T. Nitz, M.D.'s NPI number?
Stephen T. Nitz, M.D.'s National Provider Identifier (NPI) is 1518958651, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Stephen T. Nitz, M.D. located?
The NPPES record lists a practice address at 7177 Crimson Ridge Dr, Rockford, IL, 61107. Phone: (815) 734-6061. Providers update this record themselves, so call before visiting.
How can I verify Stephen T. Nitz, M.D.'s license?
NPPES lists Illinois license number 036105695, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen T. Nitz, M.D. prescribe under Medicare Part D?
In 2024, Stephen T. Nitz, M.D. had 869 Medicare Part D claims for 166 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.