NPPES file of Aug 9, 2026

Mark Marshall Millar, M.D.

Allergy & Immunology Physician · Grand Rapids, MI

Mark Marshall Millar, M.D. is an allergy & immunology physician with a practice address in Grand Rapids, Michigan, and NPI 1962627802, issued on Apr 16, 2007. Check the license (Michigan 4301071401, 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
1962627802
Name
Mark Marshall Millar
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
4301071401 MI
Self-reported in NPPES; status is on the state search
Practice location
1179 E Paris Ave SE, Grand Rapids, MI 49546
Phone
(616) 957-1912
Enumerated
Apr 16, 2007
Record last updated
May 14, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(616) 957-0074
Medicaid ID
347887810 MI
Medicare enrollment
Enrolled (PECOS I20041013001272); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1993
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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8 nearest allergy & immunology physician records → All 137 in Michigan → Look up another NPI →

Also registered at 1179 E Paris Ave SE

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

  1. Andrew Behler, D.O.,M.P.H.Facial Plastic Surgery Physician1407066996
  2. Harold Hollander, D.O.Plastic Surgery within the Head & Neck (Otolaryngology) Physician1699739425
  3. Joseph Horak, PH.D.Psychologist1629168034
  4. Alan Hovestadt, ED.D.Marriage & Family Therapist1619023389
  5. Brett Kingma, D.D.S.Pediatric Dentistry1669864732
  6. Karen Meyerson, MSN, FNP-C, AE-CNurse Practitioner1720250145

Verify Mark Marshall Millar 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 4301071401    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

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3.4 times the Medicare Part D claims of the average allergy & immunology physician in 2024

2,498 Medicare Part D claims for 407 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Mark Millar2,498
  2. Specialty average741

Most prescribed

  1. Levocetirizine Dihydrochloride462 claims
  2. Azelastine Hcl331 claims
  3. Montelukast Sodium312 claims
  4. Fluticasone Propionate205 claims
  5. Ipratropium Bromide194 claims
  6. Fluticasone-Salmeterol121 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: $33.84

2 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Millar$33.84
  2. Specialty average$8,321.81

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Mark Marshall Millar among 137 allergy & immunology physician records in Michigan

Mark Marshall Millar, M.D. is one of 137 allergy & immunology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 57% of them.

  • NPI issued2007 · 57% of these records are older, 35% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1993 · median 2001 among the 98 with a school on file
  • Record last updated2014 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Michigan

There are 137 allergy & immunology physician records in Michigan.

All 137 in Michigan → Every provider in Grand Rapids → Allergy & Immunology Physician nationwide →

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Karyn Gell, MDGrand Rapids, MI 495461811001662
  2. Christine Schafer, MDGrand Rapids, MI 495461306950142
  3. Sara Uekert, MDGrand Rapids, MI 495461447364237
  4. Bradley Boelkins, M.D.Grand Rapids, MI 495251073908091
  5. Nancy Brooke, MDGrand Rapids, MI 495251326090275
  6. Courtney Cotter, DOGrand Rapids, MI 495251023504149
  7. Vincent Dubravec, M.D.Grand Rapids, MI 495251346215563
  8. Jacqueline Eastman Yam, MDGrand Rapids, MI 495251346509692

Common questions

What is Mark Marshall Millar, M.D.'s NPI number?

Mark Marshall Millar, M.D.'s National Provider Identifier (NPI) is 1962627802, issued on Apr 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark Marshall Millar, M.D. located?

The NPPES record lists a practice address at 1179 E Paris Ave SE, Grand Rapids, MI, 49546. Phone: (616) 957-1912. Providers update this record themselves, so call before visiting.

How can I verify Mark Marshall Millar, M.D.'s license?

NPPES lists Michigan license number 4301071401, 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 Mark Marshall Millar, M.D. prescribe under Medicare Part D?

In 2024, Mark Marshall Millar, M.D. had 2,498 Medicare Part D claims for 407 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.