Catherine Firestein, MD, MPH
NPI 1427348382 · Hospitalist Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Firestein, MD, MPH is a Hospitalist Physician provider in San Diego, CA (NPI 1427348382).
Provider details
- NPI number
- 1427348382
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- A143013 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
498 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 218 | $80 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 157 | $120 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 38 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 31 | $176 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 22 | $50 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-12
- Last updated
- 2019-08-22
Frequently asked questions
- What is Catherine Firestein's NPI number?
- Catherine Firestein's National Provider Identifier (NPI) is 1427348382, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Firestein's specialty?
- Catherine Firestein is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Firestein located?
- Catherine Firestein's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Catherine Firestein's phone number?
- The practice phone number listed in the NPPES registry for Catherine Firestein is (800) 926-8273.
- Does Catherine Firestein accept Medicare?
- Catherine Firestein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Firestein's NPI active?
- Yes — Catherine Firestein's NPI (1427348382) is active in the NPPES registry as of the last update on 2019-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.