John L. Xethalis, MD
Specialist · New York, NY
John L. Xethalis, MD is a specialist with a practice address in New York, New York, and NPI 1851493811, issued on Sep 1, 2006. Check the license (New York 0933380, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John L. Xethalis
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 0933380 NY
Self-reported in NPPES; status is on the state search - Practice location
- 135 E 83RD St, New York, NY 10028
- Phone
- (212) 288-1250
- Enumerated
- Sep 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (212) 879-2094
- Medicaid ID
- 00152290 NY
- Entity
- Type 1 · individual
8 nearest specialist records → All 22,636 in New York → Look up another NPI →
Also registered at 135 E 83RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John L. Xethalis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 0933380Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average specialist in 2024
63 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Tamsulosin Hcl11 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): 72.9 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: $113.63
1 payment: food and beverage; the largest payer was Sanara MedTech Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
John L. Xethalis among 22,636 specialist records in New York
John L. Xethalis, MD is one of 22,636 specialist records with a practice address in New York. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 92% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 4% of these records are
- Record last updated2007 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,896 specialist records list a practice address in New York
They are 1,896 of the 98,468 NPPES records with a practice address in New York, and 22,636 specialist records in New York.
All 22,636 in New York → Every provider in New York → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
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- Barry Berson, M.D.New York, NY 100281225071145
- Scott David, MDNew York, NY 100281982600888
- Seth Finkelstein, M.D.New York, NY 100281790754034
- Jeffrey Freed, M.D.New York, NY 100281124064159
- Nils Guttenplan, M.D.New York, NY 100281952399610
Common questions
What is John L. Xethalis, MD's NPI number?
John L. Xethalis, MD's National Provider Identifier (NPI) is 1851493811, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John L. Xethalis, MD located?
The NPPES record lists a practice address at 135 E 83RD St, New York, NY, 10028. Phone: (212) 288-1250. Providers update this record themselves, so call before visiting.
How can I verify John L. Xethalis, MD's license?
NPPES lists New York license number 0933380, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does John L. Xethalis, MD prescribe under Medicare Part D?
In 2024, John L. Xethalis, MD had 63 Medicare Part D claims; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is John L. Xethalis, MD's MIPS final score?
The 2023 MIPS final score is 72.9 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.