NPPES file of Aug 9, 2026

Walter Wallace Valesky, MD

Emergency Medicine Physician · Orange, CA

Walter Wallace Valesky, MD is an emergency medicine physician with a practice address in Orange, California, and NPI 1790925329, issued on Feb 23, 2009. Check the license (California C176907, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790925329
Name
Walter Wallace Valesky
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
C176907 CA
264753 NY
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 456-8888
Enumerated
Feb 23, 2009
Record last updated
Oct 11, 2024
Medicare enrollment
Enrolled (PECOS I20220607001666); accepts Medicare assignment
Medical or professional school
University Of South Carolina School Of Medicine, 2008
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 101 The City Dr S

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

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Walter Wallace Valesky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C176907
    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 California license search

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67% fewer Medicare Part D claims than the average emergency medicine physician in 2024

75 Medicare Part D claims for 34 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Walter Valesky75
  2. Specialty average226

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 MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Regents OF The University OFOrange, CA

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

Walter Wallace Valesky among 7,751 emergency medicine physician records in California

Walter Wallace Valesky, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 54% of them.

  • NPI issued2009 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2008 · median 2011 among the 4,560 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

179 emergency medicine physician records list a practice address in Orange

They are 179 of the 13,245 NPPES records with a practice address in Orange, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Michael Anderson, MDOrange, CA 928681093747750
  2. Rishi Bhargava, MDOrange, CA 928681407811623
  3. Jonathan Blair, MDOrange, CA 928681891727954
  4. Bharath Chakravarthy, MDOrange, CA 928681144259839
  5. Elizabeth Fiedler, MDOrange, CA 928681578594529
  6. Jeffrey Hughes, MDOrange, CA 928681871525949
  7. Michael Menchine, MDOrange, CA 928681912963612
  8. David Merin, MDOrange, CA 928681811929979

Common questions

What is Walter Wallace Valesky, MD's NPI number?

Walter Wallace Valesky, MD's National Provider Identifier (NPI) is 1790925329, issued on Feb 23, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Walter Wallace Valesky, MD located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-8888. Providers update this record themselves, so call before visiting.

How can I verify Walter Wallace Valesky, MD's license?

NPPES lists California license number C176907, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Walter Wallace Valesky, MD prescribe under Medicare Part D?

In 2024, Walter Wallace Valesky, MD had 75 Medicare Part D claims for 34 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Walter Wallace Valesky, MD's MIPS final score?

The 2023 MIPS final score is 100 of 100. 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.