Natalie Rose Zimmer-Maslon, DO
Internal Medicine Physician · Saint Joseph, MI
Natalie Rose Zimmer-Maslon, DO is an internal medicine physician with a practice address in Saint Joseph, Michigan, and NPI 1821586108, issued on Apr 23, 2018. Check the license (Michigan 5101026189, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Natalie Rose Zimmer-Maslon
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 5101026189 MI
5101023755 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1234 Napier Ave, Saint Joseph, MI 49085
- Phone
- (269) 985-4632
- Enumerated
- Apr 23, 2018
- Record last updated
- Nov 15, 2023
- Fax
- (269) 985-4523
- Medicare enrollment
- Enrolled (PECOS I20211101001482); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2018
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 1234 Napier Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Natalie Rose Zimmer-Maslon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101026189Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
200 Medicare Part D claims for 80 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 15 claims were for opioids.
Most prescribed
- Pantoprazole Sodium15 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Lakeland Medical PracticesSaint Joseph, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Natalie Rose Zimmer-Maslon among 5,735 internal medicine physician records in Michigan
Natalie Rose Zimmer-Maslon, DO 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 2018, is newer than 74% of them.
- NPI issued2018 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2006 among the 3,564 with a school on file
- Record last updated2023 · 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).
49 internal medicine physician records list a practice address in Saint Joseph
They are 49 of the 1,038 NPPES records with a practice address in Saint Joseph, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Saint Joseph → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kathleen Andries, MDSt Joseph, MI 490851588623276
- Sharon Deskins, M.D.Saint Joseph, MI 490851275592537
- Samraja Emerson, MDSaint Joseph, MI 490851235165093
- John Froggatt, MDSaint Joseph, MI 490851588691091
- John Gosling, MDSaint Joseph, MI 490851851387302
- Ewanah Johnson, MDSaint Joseph, MI 490851841282456
- Hany Mesiha, MDSaint Joseph, MI 490851003034455
- Sherrell O'Donnell, D.O.Saint Joseph, MI 490851699771725
Common questions
What is Natalie Rose Zimmer-Maslon, DO's NPI number?
Natalie Rose Zimmer-Maslon, DO's National Provider Identifier (NPI) is 1821586108, issued on Apr 23, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Natalie Rose Zimmer-Maslon, DO located?
The NPPES record lists a practice address at 1234 Napier Ave, Saint Joseph, MI, 49085. Phone: (269) 985-4632. Providers update this record themselves, so call before visiting.
How can I verify Natalie Rose Zimmer-Maslon, DO's license?
NPPES lists Michigan license number 5101026189, 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 Natalie Rose Zimmer-Maslon, DO prescribe under Medicare Part D?
In 2024, Natalie Rose Zimmer-Maslon, DO had 200 Medicare Part D claims for 80 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Natalie Rose Zimmer-Maslon, DO's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.