NPPES file of Aug 9, 2026

Karl C. Golnik, MD

Neuro-ophthalmology Physician · Phoenix, AZ

Karl C. Golnik, MD is a neuro-ophthalmology physician with a practice address in Phoenix, Arizona, and NPI 1407896871, issued on Jun 7, 2006. Check the license (Arizona 68431, as entered in NPPES) on the Arizona Medical Board; 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
1407896871
Name
Karl C. Golnik
Credential
MD
Primary taxonomy
Neuro-ophthalmology Physician 207WX0109X
License number
68431 AZ
Self-reported in NPPES; status is on the state search
Practice location
240 W Thomas RD # 401, Phoenix, AZ 85013
Phone
(602) 406-6262
Enumerated
Jun 7, 2006
Record last updated
Aug 26, 2024
Fax
(602) 406-6261
Medicare enrollment
Enrolled (PECOS I20230719001436); accepts Medicare assignment
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 240 W Thomas RD # 401

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

  1. Valerie Chen, PA-CMedical Physician Assistant1801415773
  2. Kevin ChoiEpilepsy Physician1295266203
  3. Erin Collins, P.A.-CPhysician Assistant1699083345
  4. Deana Gazzola, M.D.Epilepsy Physician1427227818
  5. David Harris, MDEpilepsy Physician1275822637
  6. Susan Herman, MDEpilepsy Physician1255365920

Verify Karl C. Golnik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 68431
    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 Arizona 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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74% fewer Medicare Part D claims than the average neuro-ophthalmology physician in 2024

87 Medicare Part D claims for 32 beneficiaries, against an average of 335 among the 140 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Karl Golnik87
  2. Specialty average335

Most prescribed

  1. Prednisone40 claims
  2. Pyridostigmine Bromide34 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: $14.46

1 payment: food and beverage; the largest payer was Amgen Inc. The 92 providers of this specialty with any payment received $6,114.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karl Golnik$14.46
  2. Specialty average$6,114.59

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. Sjhmc Physician ServicesPhoenix, AZ

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

Neuro-ophthalmology Physician providers in Arizona

There are 3 neuro-ophthalmology physician records in Arizona.

The 2 neuro-ophthalmology physician records with the nearest ZIP codes

  1. Jay PatelPhoenix, AZ 850131053873422
  2. Wayne Bixenman, MDTucson, AZ 857101790862522

Common questions

What is Karl C. Golnik, MD's NPI number?

Karl C. Golnik, MD's National Provider Identifier (NPI) is 1407896871, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karl C. Golnik, MD located?

The NPPES record lists a practice address at 240 W Thomas RD # 401, Phoenix, AZ, 85013. Phone: (602) 406-6262. Providers update this record themselves, so call before visiting.

How can I verify Karl C. Golnik, MD's license?

NPPES lists Arizona license number 68431, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Karl C. Golnik, MD prescribe under Medicare Part D?

In 2024, Karl C. Golnik, MD had 87 Medicare Part D claims for 32 beneficiaries; the average among neuro-ophthalmology physician prescribers was 335. 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.