Robert Henry Zax, MD
MOHS-Micrographic Surgery Physician · Louisville, KY
Robert Henry Zax, MD is a mohs-micrographic surgery physician with a practice address in Louisville, Kentucky, and NPI 1689659781, issued on Dec 12, 2005. Check the license (Kentucky 25359, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Robert Henry Zax
- Credential
- MD
- Primary taxonomy
- MOHS-Micrographic Surgery Physician 207ND0101X
- License number
- 25359 KY
Self-reported in NPPES; status is on the state search - Practice location
- 2307 River RD Ste 101, Louisville, KY 40206
- Phone
- (502) 583-6647
- Enumerated
- Dec 12, 2005
- Record last updated
- Oct 9, 2024
- Fax
- (502) 585-4824
- Medicaid IDs
- 100347220 IN
64253594 KY - Medicare enrollment
- Enrolled (PECOS I20111104000493); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest mohs-micrographic surgery physician records → All 19 in Kentucky → Look up another NPI →
Also registered at 2307 River RD Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brittany Boylan, APRNFamily Nurse Practitioner1073877635
- Tyler RoshakPhysician Assistant1952091480
- Victoria Yatsuknenko, PA-CPhysician Assistant1013168715
Verify Robert Henry Zax in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 25359Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024
35 Medicare Part D claims for 26 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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): 100 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $565.44
38 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 1,074 providers of this specialty with any payment received $4,075.23 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Skin Group PLLCLouisville, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Henry Zax among 19 mohs-micrographic surgery physician records in Kentucky
Robert Henry Zax, MD is one of 19 mohs-micrographic surgery physician records with a practice address in Kentucky. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 74% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated1986 · median 2004 among the 16 with a school on file
- Record last updated2024 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
MOHS-Micrographic Surgery Physician providers in Kentucky
There are 19 mohs-micrographic surgery physician records in Kentucky.
All 19 in Kentucky → Every provider in Louisville → MOHS-Micrographic Surgery Physician nationwide →
The 8 mohs-micrographic surgery physician records with the nearest ZIP codes
- Andrew West, M.D.Louisville, KY 402051376631580
- Michael Renzi, MDMt Sterling, KY 403531497272090
- William Davey, M.D.Lexington, KY 405031497758866
- Steven Eilers, M.D.Lexington, KY 405041306250790
- Tyler Marion, MDLexington, KY 405041417410853
- John Buker, M.D.Lexington, KY 405091457355174
- Maheera Farsi-Morgan, DOLexington, KY 405091366826059
- Carol Thompson, MDLexington, KY 405091316206584
Common questions
What is Robert Henry Zax, MD's NPI number?
Robert Henry Zax, MD's National Provider Identifier (NPI) is 1689659781, issued on Dec 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Henry Zax, MD located?
The NPPES record lists a practice address at 2307 River RD Ste 101, Louisville, KY, 40206. Phone: (502) 583-6647. Providers update this record themselves, so call before visiting.
How can I verify Robert Henry Zax, MD's license?
NPPES lists Kentucky license number 25359, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Henry Zax, MD prescribe under Medicare Part D?
In 2024, Robert Henry Zax, MD had 35 Medicare Part D claims for 26 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. Part D covers Medicare prescriptions only.
What is Robert Henry Zax, MD's MIPS final score?
The 2023 MIPS final score is 100 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.