NPPES file of Aug 9, 2026

Diane Katherine Fiander, MD

Retina Specialist (Ophthalmology) Physician · Traverse City, MI

Diane Katherine Fiander, MD is a retina specialist (ophthalmology) physician with a practice address in Traverse City, Michigan, and NPI 1295092971, issued on Apr 18, 2012. Check the license (Michigan 4301101391, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295092971
Name
Diane Katherine Fiander
Credential
MD
Primary taxonomy
Retina Specialist (Ophthalmology) Physician 207WX0107X
License numbers
4301101391 MI
143150 CA
A143150 CA
Self-reported in NPPES; status is on the state search
Practice location
860 E Front St, Traverse City, MI 49686
Phone
(231) 938-0710
Enumerated
Apr 18, 2012
Record last updated
Jan 26, 2022
Fax
(231) 938-0264
Medicare enrollment
Enrolled (PECOS I20180706000069); accepts Medicare assignment
Medical or professional school
Chicago College Of Medicine And Surgery, 2012
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 860 E Front St

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

  1. Douglas Covert, MD, MPHRetina Specialist (Ophthalmology) Physician1194897017
  2. Nathan Farley, MDRetina Specialist (Ophthalmology) Physician1427476035
  3. Scott Sneed, MDRetina Specialist (Ophthalmology) Physician1740281948
  4. Yichun Teng, MB BCHIROphthalmology Physician1396373650

Verify Diane Katherine Fiander 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 4301101391
    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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11% more Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024

690 Medicare Part D claims for 186 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.

  1. Diane Fiander690
  2. Specialty average620

Most prescribed

  1. Prednisolone Acetate245 claims
  2. Ketorolac Tromethamine178 claims
  3. Gentamicin Sulfate66 claims
  4. Timolol Maleate40 claims
  5. Difluprednate24 claims
  6. Dorzolamide Hcl21 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 practice group's MIPS final score for 2023 (Medicare payment program): 95.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score98.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%89.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $297.79

11 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diane Fiander$297.79
  2. Specialty average$7,667.49

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. Associated Retinal Consultants PCRoyal Oak, MI

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

Diane Katherine Fiander among 49 retina specialist (ophthalmology) physician records in Michigan

Diane Katherine Fiander, MD is one of 49 retina specialist (ophthalmology) physician records with a practice address in Michigan. 96% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 69% of them.

  • NPI issued2012 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 96% of these records are
  • In the CMS Doctors and Clinicians fileYes · 90% of these records are
  • Graduated2012 · median 2003 among the 44 with a school on file
  • Record last updated2022 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Retina Specialist (Ophthalmology) Physician providers in Michigan

There are 49 retina specialist (ophthalmology) physician records in Michigan.

The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Douglas Covert, MD, MPHTraverse City, MI 496861194897017
  2. Nathan Farley, MDTraverse City, MI 496861427476035
  3. Kean Oh, M.D.Traverse City, MI 496861780686485
  4. Scott Sneed, MDTraverse City, MI 496861740281948
  5. Thomas Aaberg, MDGrand Rapids, MI 495461194753186
  6. Greg Bever, M.D.Grand Rapids, MI 495461114366440
  7. Edward Korot, M.D.Grand Rapids, MI 495461669853768
  8. Alan Margherio, MDGrand Rapids, MI 495461598793614

Common questions

What is Diane Katherine Fiander, MD's NPI number?

Diane Katherine Fiander, MD's National Provider Identifier (NPI) is 1295092971, issued on Apr 18, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Diane Katherine Fiander, MD located?

The NPPES record lists a practice address at 860 E Front St, Traverse City, MI, 49686. Phone: (231) 938-0710. Providers update this record themselves, so call before visiting.

How can I verify Diane Katherine Fiander, MD's license?

NPPES lists Michigan license number 4301101391, 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 Diane Katherine Fiander, MD prescribe under Medicare Part D?

In 2024, Diane Katherine Fiander, MD had 690 Medicare Part D claims for 186 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.

What is Diane Katherine Fiander, MD's MIPS final score?

The 2023 MIPS final score is 95.6 of 100, reported for the practice group. 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.