Marvin John Salzmann, MD
Internal Medicine Physician · Crystal Lake, IL
Marvin John Salzmann, MD is an internal medicine physician with a practice address in Crystal Lake, Illinois, and NPI 1558342923, issued on Nov 10, 2005. Check the license (Illinois 03641106, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marvin John Salzmann
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 03641106 IL
Self-reported in NPPES; status is on the state search - Practice location
- 460 Coventry LN, Crystal Lake, IL 60014
- Phone
- (815) 455-1344
- Enumerated
- Nov 10, 2005
- Record last updated
- Oct 7, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (815) 455-8232
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 460 Coventry LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marguerite Barbagallo, D.D.S.General Practice Dentistry1245319698
- Honeid Baxamusa, M.D.Cardiovascular Disease Physician1568473874
- Richard Hansen, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1174666572
- Ubaidur Papa, M.D.Pediatrics Physician1043237696
Verify Marvin John Salzmann 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 03641106Check 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
33 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.
Marvin John Salzmann among 7,238 internal medicine physician records in Illinois
Marvin John Salzmann, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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, 93% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2013 · 47% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in Crystal Lake
They are 18 of the 1,442 NPPES records with a practice address in Crystal Lake, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Crystal Lake → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mukesh Arora, MDCrystal Lake, IL 600141518975796
- Syed Asghar, M.D.Crystal Lake, IL 600141629182712
- Gilbert Egekeze, MDCrystal Lake, IL 600141548361959
- George Gancayco, M.D.Crystal Lake, IL 600141477566834
- Sanjeev Gupta, MDCrystal Lake, IL 600141659471175
- Carol Kotzan, M.D.Crystal Lake, IL 600141710950100
- Zbigniew Lorenc, MDCrystal Lake, IL 600141902879380
- Sonia Mehta, M.D.Crystal Lake, IL 600141265459895
Common questions
What is Marvin John Salzmann, MD's NPI number?
Marvin John Salzmann, MD's National Provider Identifier (NPI) is 1558342923, issued on Nov 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marvin John Salzmann, MD located?
The NPPES record lists a practice address at 460 Coventry LN, Crystal Lake, IL, 60014. Phone: (815) 455-1344. Providers update this record themselves, so call before visiting.
How can I verify Marvin John Salzmann, MD's license?
NPPES lists Illinois license number 03641106, 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 Marvin John Salzmann, MD prescribe under Medicare Part D?
In 2024, Marvin John Salzmann, MD had 33 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.