Aaron Reyes, MD
NPI 1851854525 · Hospitalist Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Reyes, MD is a Hospitalist Physician provider in San Diego, CA (NPI 1851854525).
Provider details
- NPI number
- 1851854525
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
250 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 104 | $176 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 43 | $132 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 41 | $80 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 26 | $50 |
| Critical Care, First 30-74 Minutes99291 | 22 | $213 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 |
Practice location
Mailing address
Additional practice locations (1)
- 4077 Fifth AveSan Diego, CA 92103-2105Phone: (619) 260-7125
Registry dates
- Enumerated
- 2019-04-10
- Last updated
- 2024-10-25
- Certified
- 2024-09-16
Frequently asked questions
- What is Aaron Reyes's NPI number?
- Aaron Reyes's National Provider Identifier (NPI) is 1851854525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Reyes's specialty?
- Aaron Reyes is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Reyes located?
- Aaron Reyes's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Aaron Reyes's phone number?
- The practice phone number listed in the NPPES registry for Aaron Reyes is (800) 926-8273.
- Does Aaron Reyes accept Medicare?
- Aaron Reyes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Reyes's NPI active?
- Yes — Aaron Reyes's NPI (1851854525) is active in the NPPES registry as of the last update on 2024-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.