NPPES file of Aug 9, 2026

Nathaniel Keith Johnson, MD

Physical Medicine & Rehabilitation Physician · Grand Rapids, MI

Nathaniel Keith Johnson, MD is a physical medicine & rehabilitation physician with a practice address in Grand Rapids, Michigan, and NPI 1043899925, issued on Apr 6, 2021. Check the license (Michigan 4301513712, 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
1043899925
Name
Nathaniel Keith Johnson
Credential
MD
Primary taxonomy
Physical Medicine & Rehabilitation Physician 208100000X
License number
4301513712 MI
Self-reported in NPPES; status is on the state search
Practice location
235 Wealthy St SE, Grand Rapids, MI 49503
Phone
(616) 840-8000
Enumerated
Apr 6, 2021
Record last updated
Jul 31, 2025
Medicare enrollment
Enrolled (PECOS I20250719000061); accepts Medicare assignment
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 235 Wealthy St SE

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

  1. Alyssa Ackerman, CCC-SLPSpeech-Language Pathologist1689392714
  2. Penny Adams, MS-OTR/LOccupational Therapist1831690759
  3. Katherine Aeschlimann, OTR/LOccupational Therapist1487156972
  4. Leah Allan, OTR/LOccupational Therapist1265156608
  5. Hannah Alvarez, PT, DPTNeurology Physical Therapist1720580319
  6. Michelle Andary, DOPhysical Medicine & Rehabilitation Physician1841938685

Verify Nathaniel Keith Johnson 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 4301513712
    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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98% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024

11 Medicare Part D claims, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Nathaniel Johnson11
  2. Specialty average727

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.

Bills Medicare through one group practice

  1. Mary Free Bed Rehabilitation HospitalGrand Rapids, MI

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

Nathaniel Keith Johnson among 742 physical medicine & rehabilitation physician records in Michigan

Nathaniel Keith Johnson, MD is one of 742 physical medicine & rehabilitation physician records with a practice address in Michigan. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.

  • NPI issued2021 · 81% of these records are older, 15% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2021 · median 2008 among the 390 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Physical Medicine & Rehabilitation Physician providers in Michigan

There are 742 physical medicine & rehabilitation physician records in Michigan.

The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes

  1. Richard Ball, M.D.Grand Rapids, MI 495031679523765
  2. Benjamin Bruinsma, M.D.Grand Rapids, MI 495031508804154
  3. Aashish Deshpande, MDGrand Rapids, MI 495031003915976
  4. Sampson Ho, M.D.Grand Rapids, MI 495031437192374
  5. Michael Jakubowski, M.D.Grand Rapids, MI 495031104863646
  6. Jeffrey Kramer, M.D.Grand Rapids, MI 495031306889100
  7. Robert Kreitsch, MDGrand Rapids, MI 495031609882661
  8. Christopher Morelli, D.O.Grand Rapids, MI 495031063653798

Common questions

What is Nathaniel Keith Johnson, MD's NPI number?

Nathaniel Keith Johnson, MD's National Provider Identifier (NPI) is 1043899925, issued on Apr 6, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel Keith Johnson, MD located?

The NPPES record lists a practice address at 235 Wealthy St SE, Grand Rapids, MI, 49503. Phone: (616) 840-8000. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel Keith Johnson, MD's license?

NPPES lists Michigan license number 4301513712, 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 Nathaniel Keith Johnson, MD prescribe under Medicare Part D?

In 2024, Nathaniel Keith Johnson, MD had 11 Medicare Part D claims; the average among physical medicine & rehabilitation physician prescribers was 727. 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.