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Anesthesiology

David L. Velasco Jr., MD

Works at hospitals in Lancaster, CA · California

Summary

Dr. David L. Velasco Jr., MD is an anesthesiologist at 1600 W Ave J, Lancaster, CA 93534. Phone: (661) 949-5000. Accepts Medicare assignment. In 2024, David L. Velasco Jr. had 81 Original Medicare patients and 105 services. NPI 1689620460. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 1600 W Ave J, Lancaster, CA 93534 · Directions
  • Phone: (661) 949‑5000
  • Medicare: Accepts Medicare assignment
  • Hospital: Antelope Valley Hospital
  • Group practice: Anesthesia Partners of North Valley
  • Medical school: graduated 1986 (40 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about David L. Velasco Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does David L. Velasco Jr. accept Medicare assignment?
Yes. Medicare's clinician data says David L. Velasco Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does David L. Velasco Jr. see?
In 2024, CMS data shows 81 Original Medicare patients and 105 services for David L. Velasco Jr.. This counts Original Medicare only and measures volume, not quality.
What is David L. Velasco Jr.'s NPI number?
1689620460. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for David L. Velasco Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients81
Services billed to Medicare105
Different services or procedures47
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)17 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis72%
  • Diabetes51%
  • Chronic kidney disease41%
  • Heart failure37%

Hospitals where David L. Velasco Jr. works

Medicare's Facility Affiliation Data lists David L. Velasco Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Antelope Valley HospitalLancaster, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050056

Practice locations

Addresses where David L. Velasco Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists David L. Velasco Jr. as a member of this group (CMS data updated October 2, 2026).

  • Anesthesia Partners of North Valley21 clinicians in the group

Specialties

Find other Anesthesiology doctors in California →

Other anesthesiologists in Lancaster

Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.

All anesthesiologists in Lancaster →

Other clinicians in Anesthesia Partners of North Valley

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689620460
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians