Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Neel Tank, DO

Works at hospitals in Antioch, CA · Anaheim, CA · California

Summary

Dr. Neel Tank, DO is an emergency medicine doctor at 1425 S Main St, Walnut Creek, CA 94596. Phone: (925) 295-4000. Accepts Medicare assignment. In 2024, Neel Tank had 179 Original Medicare patients and 202 services. NPI 1275984171. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Neel Tank, 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 Neel Tank accept Medicare assignment?
Yes. Medicare's clinician data says Neel Tank 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 Neel Tank see?
In 2024, CMS data shows 179 Original Medicare patients and 202 services for Neel Tank. This counts Original Medicare only and measures volume, not quality.
What is Neel Tank's NPI number?
1275984171. 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 Neel Tank, 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 patients179
Services billed to Medicare202
Different services or procedures15
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)116 services
  2. Emergency department visit with moderate level of medical decision making (99284)55 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%
  • Arthritis54%
  • Diabetes51%
  • Ischemic heart disease51%
  • Anxiety48%

Hospitals where Neel Tank works

Medicare's Facility Affiliation Data lists Neel Tank 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.

Practice locations

Addresses where Neel Tank is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Neel Tank as a member of these groups (CMS data updated October 2, 2026).

  • Southern California Permanente Medical Group11,293 clinicians in the group
  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Walnut Creek

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

All emergency medicine doctors in Walnut Creek →

Other clinicians in Southern California Permanente Medical Group

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

Clinician information

CredentialDO
Medical schoolTouro Un Col Of Osteopathic Medicine, New York
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275984171
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