Karen Brown, M.D.
NPI 1619191749 · Diagnostic Radiology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Brown, M.D. is a Diagnostic Radiology Physician provider in San Francisco, CA (NPI 1619191749).
Provider details
- NPI number
- 1619191749
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD46119T (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
70 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 30 | $9 |
| X-Ray of Chest, 2 Views71046 | 21 | $11 |
| Ct Scan Head Or Brain Without Contrast70450 | 19 | $40 |
Typical Medicare-allowed amounts for these services range $9–$40 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-12
- Last updated
- 2022-01-10
Frequently asked questions
- What is Karen Brown's NPI number?
- Karen Brown's National Provider Identifier (NPI) is 1619191749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Brown's specialty?
- Karen Brown is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Brown located?
- Karen Brown's practice location on file with NPPES is 505 Parnassus Ave # M-396, San Francisco, CA 94143-2204.
- What is Karen Brown's phone number?
- The practice phone number listed in the NPPES registry for Karen Brown is (415) 353-2096.
- Does Karen Brown accept Medicare?
- Karen Brown is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Brown's NPI active?
- Yes — Karen Brown's NPI (1619191749) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.