NPPES file of Aug 9, 2026

Heidi Dahl, MD

Ophthalmology Physician · Knoxville, TN

Heidi Dahl, MD is an ophthalmology physician with a practice address in Knoxville, Tennessee, and NPI 1396373536, issued on Apr 1, 2020. Check the license (Tennessee 70580, as entered in NPPES) on the Tennessee Board of Medical Examiners; 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
1396373536
Name
Heidi Dahl
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
70580 TN
30719 MN
69564 MN
Self-reported in NPPES; status is on the state search
Practice location
4528 Chapman Hwy, Knoxville, TN 37920
Phone
(865) 579-3920
Enumerated
Apr 1, 2020
Record last updated
Apr 9, 2026
Fax
(865) 579-3963
Medicare enrollment
Enrolled (PECOS I20240807003052); accepts Medicare assignment
Medical or professional school
East Tennessee State University Quillen College Of Medicine, 2019
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 4528 Chapman Hwy

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

  1. Andrew Anzeljc, MDOphthalmic Plastic and Reconstructive Surgery Physician1891061396
  2. Marc Bodenheimer, M.D.Cornea and External Diseases Specialist Physician1598747875
  3. Adam Carrera, M.D.Ophthalmology Physician1477916682
  4. Loren Cook, M.D.Ophthalmology Physician1093738726
  5. Albert Holmes, M.D.Ophthalmology Physician1720060676
  6. Mark Ivens, M.D.Ophthalmology Physician1821070103

Verify Heidi Dahl in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 70580
    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 Tennessee 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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67% fewer Medicare Part D claims than the average ophthalmology physician in 2024

495 Medicare Part D claims for 154 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Heidi Dahl495
  2. Specialty average1,518

Most prescribed

  1. Latanoprost109 claims
  2. Prednisolone Acetate81 claims
  3. Ofloxacin61 claims
  4. Ketorolac Tromethamine44 claims
  5. Timolol Maleate38 claims
  6. Dorzolamide-Timolol24 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: $67.36

3 payments; by number, the most common kind was food and beverage; the largest payer was Mallinckrodt Hospital Products 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. Heidi Dahl$67.36
  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. Baptist Eye Surgeons, PLLCKnoxville, TN

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

Ophthalmology Physician providers in Tennessee

There are 366 ophthalmology physician records in Tennessee.

Other ophthalmology physician records in Tennessee

  1. Brent Aebi, M.D.Bristol, TN1902291859
  2. Khandaker AhadMurfreesboro, TN1346350527
  3. Harold Akin, MDMurfreesboro, TN1386736494
  4. Nancy Alison, M.D.Johnson City, TN1679566962
  5. Mitchell Allphin, MDNashville, TN1295313138
  6. Paul Ambrose, M.D.Knoxville, TN1316949613
  7. Steven Anderson, M.D.Chattanooga, TN1295732063
  8. Charles Ange, M.D.Knoxville, TN1952370843
  9. Christopher Areephanthu, M.D.Pleasant View, TN1558710970
  10. Joseph Armstrong, M.D.Bristol, TN1083724371

Common questions

What is Heidi Dahl, MD's NPI number?

Heidi Dahl, MD's National Provider Identifier (NPI) is 1396373536, issued on Apr 1, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Heidi Dahl, MD located?

The NPPES record lists a practice address at 4528 Chapman Hwy, Knoxville, TN, 37920. Phone: (865) 579-3920. Providers update this record themselves, so call before visiting.

How can I verify Heidi Dahl, MD's license?

NPPES lists Tennessee license number 70580, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Heidi Dahl, MD prescribe under Medicare Part D?

In 2024, Heidi Dahl, MD had 495 Medicare Part D claims for 154 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.