NPPES file of Aug 9, 2026

Austen Nicole Knapp, MD

Ophthalmology Physician · Grand Rapids, MI

Austen Nicole Knapp, MD is an ophthalmology physician with a practice address in Grand Rapids, Michigan, and NPI 1871098111, issued on Mar 28, 2018. Check the license (Michigan 4351028281, 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
1871098111
Name
Austen Nicole Knapp
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
4351028281 MI
A177155 CA
Self-reported in NPPES; status is on the state search
Practice location
5030 Cascade RD SE, Grand Rapids, MI 49546
Phone
(616) 954-2020
Enumerated
Mar 28, 2018
Record last updated
Sep 19, 2024
Fax
(616) 949-0408
Medicare enrollment
Enrolled (PECOS I20240715001388); accepts Medicare assignment
Medical or professional school
Oakland Univ, William Beaumont School Of Medicine, 2018
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 5030 Cascade RD SE

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

  1. Thomas Aaberg, MDRetina Specialist (Ophthalmology) Physician1194753186
  2. Greg Bever, M.D.Retina Specialist (Ophthalmology) Physician1114366440
  3. Joseph Boss, M.D.Uveitis and Ocular Inflammatory Disease (Ophthalmology) Physician1912346388
  4. Kathleen Dehorn, MDOphthalmology Physician1215143797
  5. Edward Korot, M.D.Retina Specialist (Ophthalmology) Physician1669853768
  6. Amro Omari, MDOphthalmology Physician1922665587

Verify Austen Nicole Knapp 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 4351028281
    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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89% fewer Medicare Part D claims than the average ophthalmology physician in 2024

161 Medicare Part D claims for 77 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.

  1. Austen Knapp161
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate38 claims
  2. Ketorolac Tromethamine17 claims
  3. Timolol Maleate12 claims
  4. Brimonidine Tartrate11 claims
  5. Difluprednate11 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: $557.07

11 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Austen Knapp$557.07
  2. Specialty average$4,535.02

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

Bills Medicare through one group practice

  1. Retina Specialists OF Michigan PCGrand Rapids, MI

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

Austen Nicole Knapp among 791 ophthalmology physician records in Michigan

Austen Nicole Knapp, MD is one of 791 ophthalmology 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 2018, is newer than 83% of them.

  • NPI issued2018 · 83% of these records are older, 14% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2018 · median 2002 among the 548 with a school on file
  • Record last updated2024 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Michigan

There are 791 ophthalmology physician records in Michigan.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Eiyass Albeiruti, M.D.Grand Rapids, MI 495461952503864
  2. Kathleen Dehorn, MDGrand Rapids, MI 495461215143797
  3. Bruce Dragoo, MDGrand Rapids, MI 495461578568317
  4. Frank Garber, M.D.Grand Rapids, MI 495461497799324
  5. Louis Glazer, M.D.Grand Rapids, MI 495461760422158
  6. Marko Habekovic, MDGrand Rapids, MI 495461992748198
  7. Elizabeth Henry, MDGrand Rapids, MI 495461598727935
  8. Mark Moleski, MDGrand Rapids, MI 495461033102371

Common questions

What is Austen Nicole Knapp, MD's NPI number?

Austen Nicole Knapp, MD's National Provider Identifier (NPI) is 1871098111, issued on Mar 28, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Austen Nicole Knapp, MD located?

The NPPES record lists a practice address at 5030 Cascade RD SE, Grand Rapids, MI, 49546. Phone: (616) 954-2020. Providers update this record themselves, so call before visiting.

How can I verify Austen Nicole Knapp, MD's license?

NPPES lists Michigan license number 4351028281, 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 Austen Nicole Knapp, MD prescribe under Medicare Part D?

In 2024, Austen Nicole Knapp, MD had 161 Medicare Part D claims for 77 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.