NPPES file of Aug 9, 2026

Nathan Turnwald, OD

Optometrist · Boise, ID

Nathan Turnwald, OD is an optometrist with a practice address in Boise, Idaho, and NPI 1124634001, issued on Sep 16, 2020. Check the license (Idaho 100518, as entered in NPPES) with the Idaho board that licenses this profession; 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
1124634001
Name
Nathan Turnwald
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
100518 ID
Self-reported in NPPES; status is on the state search
Practice location
8641 W Franklin RD, Boise, ID 83709
Phone
(208) 378-8989
Enumerated
Sep 16, 2020
Record last updated
Sep 26, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest optometrist records → All 369 in Idaho → Look up another NPI →

Also registered at 8641 W Franklin RD

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

  1. Joshua Dalley, ODOptometrist1376103457
  2. Terry Marquardt, O.D.Optometrist1508177379
  3. Alan Sands, O.D.Optometrist1275684409
  4. Erik Thompson, O.D.Optometrist1891082186

Verify Nathan Turnwald in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Idaho board licenses this profession
    Search for license 100518    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
Find the Idaho 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

96% fewer Medicare Part D claims than the average optometrist in 2024

12 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Nathan Turnwald12
  2. Specialty average277

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.

Nathan Turnwald among 369 optometrist records in Idaho

Nathan Turnwald, OD is one of 369 optometrist records with a practice address in Idaho. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 86% of them.

  • NPI issued2020 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2020 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Idaho

There are 369 optometrist records in Idaho.

All 369 in Idaho → Every provider in Boise → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Paul Brewer, O.D.Boise, ID 837091396120234
  2. Chad Clark, O.D.Boise, ID 837091205241577
  3. Joshua Dalley, ODBoise, ID 837091376103457
  4. Bruce Hamerl, O.D.Boise, ID 837091114026606
  5. Stephen Hunter, O. D.Boise, ID 837091285748772
  6. Terry Marquardt, O.D.Boise, ID 837091508177379
  7. Joshua McAdams, O.D.Boise, ID 837091326302548
  8. Richard Murray, ODBoise, ID 837091215001383

Common questions

What is Nathan Turnwald, OD's NPI number?

Nathan Turnwald, OD's National Provider Identifier (NPI) is 1124634001, issued on Sep 16, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Turnwald, OD located?

The NPPES record lists a practice address at 8641 W Franklin RD, Boise, ID, 83709. Phone: (208) 378-8989. Providers update this record themselves, so call before visiting.

How can I verify Nathan Turnwald, OD's license?

NPPES lists Idaho license number 100518, as entered by the provider. Search the Idaho board that licenses this profession; the NPPES record confirms identity only.

How much does Nathan Turnwald, OD prescribe under Medicare Part D?

In 2024, Nathan Turnwald, OD had 12 Medicare Part D claims; the average among optometrist prescribers was 277. 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.