NPPES file of Aug 9, 2026

Charles Nathan Walker, M.D.

Urology Physician · Newburgh, NY

Charles Nathan Walker, M.D. is a urology physician with a practice address in Newburgh, New York, and NPI 1154402139, issued on Oct 18, 2006. Check the license (New York 294066, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1154402139
Name
Charles Nathan Walker
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License number
294066 NY
Self-reported in NPPES; status is on the state search
Practice location
1200 Route 300, Newburgh, NY 12550
Phone
(845) 703-6999
Enumerated
Oct 18, 2006
Record last updated
Oct 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(845) 703-6297
Medicare enrollment
Enrolled (PECOS I20180523002631); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1200 Route 300

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

  1. Brianna Almonte, PA-CMedical Physician Assistant1598640534
  2. Sanjeev Baldeo, DPMPodiatrist1861013005
  3. Eileen Bogursky, M.D.Gynecology Physician1316917990
  4. Kelsey Branch, PA-CMedical Physician Assistant1053916353
  5. Stephen Cestari, D.O.Obstetrics & Gynecology Physician1053382358
  6. Jose Churrango, MDGastroenterology Physician1386879914

Verify Charles Nathan Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 294066
    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 New York 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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36% more Medicare Part D claims than the average urology physician in 2024

1,821 Medicare Part D claims for 453 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 30 claims were for opioids.

  1. Charles Walker1,821
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl489 claims
  2. Finasteride403 claims
  3. Oxybutynin Chloride Er371 claims
  4. Myrbetriq129 claims
  5. Alfuzosin Hcl Er62 claims
  6. Nitrofurantoin Mono-Macro46 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: $158.96

1 payment: food and beverage; the largest payer was Calyxo, Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Charles Walker$158.96
  2. Specialty average$3,800.04

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. Optum Medical Care PCMount Kisco, NY

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

Charles Nathan Walker among 1,091 urology physician records in New York

Charles Nathan Walker, M.D. is one of 1,091 urology physician records with a practice address in New York. 80% 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 13% of them.

  • NPI issued2006 · 13% of these records are older, 47% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2000 · median 2000 among the 735 with a school on file
  • Record last updated2020 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in New York

There are 1,091 urology physician records in New York.

The 8 urology physician records with the nearest ZIP codes

  1. Yu-Kuan Lin, M.D.Newburgh, NY 125501063706414
  2. Gary Loden, M.D.Newburgh, NY 125501598771529
  3. Paul Pomerantz, M.D.Newburgh, NY 125501770676595
  4. Jaspreet Singh, D.O.New Windsor, NY 125531598859217
  5. Michael SternNew Windsor, NY 125531356737134
  6. Praneeth Vemulapalli, MDNew Windsor, NY 125531760642037
  7. Karuvath Enu, MDHudson, NY 125341255348421
  8. Daniel Melamed, MDHudson, NY 125341902836844

Common questions

What is Charles Nathan Walker, M.D.'s NPI number?

Charles Nathan Walker, M.D.'s National Provider Identifier (NPI) is 1154402139, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles Nathan Walker, M.D. located?

The NPPES record lists a practice address at 1200 Route 300, Newburgh, NY, 12550. Phone: (845) 703-6999. Providers update this record themselves, so call before visiting.

How can I verify Charles Nathan Walker, M.D.'s license?

NPPES lists New York license number 294066, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Charles Nathan Walker, M.D. prescribe under Medicare Part D?

In 2024, Charles Nathan Walker, M.D. had 1,821 Medicare Part D claims for 453 beneficiaries; the average among urology physician prescribers was 1,340. 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.