NPI registry status
Active
2026 NPPES data Neuro-ophthalmology Physician NPI 1407896871 MD
Verify on CMS → Karl Golnik, MD
Neuro-ophthalmology Physician in Phoenix, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 128 in Neuro-ophthalmology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
249
Medicare Part D claims · 67 beneficiaries · Neuro-ophthalmology Physician avg: 419
Industry payments
$14.46
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Karl Golnik, MD filed 249 Medicare Part D claims in 2023 as a Neuro-ophthalmology Physician in Phoenix, Arizona.
- 249
- Part D claims, 2023
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Karl Golnik, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
249 49th percentile higher than 49% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Karl Golnik, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Karl Golnik, MD?
Quality data not reportedPrimary specialty
Neuro-ophthalmology Physician
Medicare Part D claims
249 41% vs specialty avg
Specialty distribution in Arizona
How Neuro-ophthalmology Physician compares to other specialties among Arizona providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Neuro-ophthalmology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Karl Golnik, MD appears in the CMS NPPES registry as a Neuro-ophthalmology Physician provider holding MD credentials at 240 W THOMAS RD # 401, Phoenix, AZ, 85013, with a listed phone of (602) 406-6262. NPI 1407896871 was issued on 06/07/2006.
Medicare Part D records for calendar year 2023 show 249 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $12K in drug spend.
Neuro-ophthalmology Physician is a narrow specialty nationwide, with 128 enrolled providers across 34 states and an average of 419 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1407896871 |
|---|---|
| Specialty | Neuro-ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/07/2006 |
Hospital and facility affiliations
Facilities where Karl Golnik, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Sjhmc Physician Services
Phoenix, AZ
University OF Cincinnati Physicians Company LLC
Cincinnati, OH
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Karl Golnik, MD. Source: openpaymentsdata.cms.gov.
Total received
$14
Largest payer
Amgen Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
249
Total Claims
$12K
Total Drug Cost
67
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 394
- Total Day Supply
- 11,715
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 71.4 years
- Avg HCC Risk Score
- 1.42
- Gender Split
- 57% female / 43% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Karl Golnik, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
118 claims
- Pyridostigmine Bro…
Pyridostigmine Bromide
52 claims
- Acetazolamide Er 17
Acetazolamide Er
17 claims
- Azathioprine 14
Azathioprine
14 claims
| Drug | Claims |
|---|---|
| Prednisone | 118 |
| Pyridostigmine Bromide | 52 |
| Acetazolamide Er Acetazolamide | 17 |
| Azathioprine | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neuro-ophthalmology Physician Overview
How Karl Golnik, MD fits within the Neuro-ophthalmology Physician landscape nationally.
128
Neuro-ophthalmology Physician Providers in US
34
States with Neuro-ophthalmology Physician
419
Avg Claims per Provider
Karl Golnik, MD's 249 claims are below the specialty average of 419.
Nearby Neuro-ophthalmology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Golnik.
Compare Neuro-ophthalmology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neuro-ophthalmology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Explore Arizona
Frequently Asked Questions
What is Karl Golnik, MD's specialty? ▼
Karl Golnik, MD specializes in Neuro-ophthalmology Physician and practices in Phoenix, Arizona. Credentials: MD.
How much does Karl Golnik, MD prescribe under Medicare Part D? ▼
In 2023, Karl Golnik, MD wrote 249 Medicare Part D claims totaling $12K in drug costs for 67 beneficiaries.
Where is Karl Golnik, MD located? ▼
Karl Golnik, MD is located at 240 W THOMAS RD # 401, Phoenix, AZ, 85013. Phone: (602) 406-6262.
What is Karl Golnik, MD's NPI number? ▼
Karl Golnik, MD's National Provider Identifier (NPI) is 1407896871, issued on 06/07/2006.
How many Neuro-ophthalmology Physician providers are there in the US? ▼
There are 128 Neuro-ophthalmology Physician providers across 34 states in the US. The average Neuro-ophthalmology Physician provider writes 419 Medicare Part D claims per year.
What drugs does Karl Golnik, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Karl Golnik, MD's most frequently prescribed drugs include Prednisone, Pyridostigmine Bromide, Acetazolamide Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karl Golnik, MD accept Medicare? ▼
Karl Golnik, MD appears in CMS Medicare data with 249 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karl Golnik, MD's credentials? ▼
Karl Golnik, MD's NPI is 1407896871 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.