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Infectious Disease

Anne N. Cowell, MD

Works at hospitals in San Diego, CA · California

Summary

Dr. Anne N. Cowell, MD is an infectious disease doctor at 200 W Arbor Dr, San Diego, CA 92103. Phone: (858) 657-7000. Accepts Medicare assignment. In 2024, Anne N. Cowell had 161 Original Medicare patients and 440 services. NPI 1639494420. 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 Anne N. Cowell, 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 Anne N. Cowell accept Medicare assignment?
Yes. Medicare's clinician data says Anne N. Cowell 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 Anne N. Cowell see?
In 2024, CMS data shows 161 Original Medicare patients and 440 services for Anne N. Cowell. This counts Original Medicare only and measures volume, not quality.
What is Anne N. Cowell's NPI number?
1639494420. 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 Anne N. Cowell, 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 patients161
Services billed to Medicare440
Different services or procedures11
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)133 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)91 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)75 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)39 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)35 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%
  • Arthritis56%
  • Chronic kidney disease48%
  • Ischemic heart disease44%
  • Diabetes42%

Hospitals where Anne N. Cowell works

Medicare's Facility Affiliation Data lists Anne N. Cowell 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 Anne N. Cowell is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Anne N. Cowell as a member of this group (CMS data updated October 2, 2026).

  • Regents of the University of California2,089 clinicians in the group

Specialties

Find other Infectious Disease doctors in California →

Other infectious disease doctors in San Diego

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

All infectious disease doctors in San Diego →

Other clinicians in Regents of the University of California

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

Clinician information

CredentialMD
Medical schoolTulane University School Of Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639494420
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