Kristine Breyer, M.D.
NPI 1669637575 · Anesthesiology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristine Breyer, M.D. is a Anesthesiology Physician provider in San Francisco, CA (NPI 1669637575).
Provider details
- NPI number
- 1669637575
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A104570 (CA)
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
17 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
80 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 28 | $231 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 23 | $47 |
| Anesthesia for Extensive Surgery on Spine00670 | 18 | $600 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 11 | $147 |
Typical Medicare-allowed amounts for these services range $47–$600 (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
- 2008-07-21
- Last updated
- 2013-07-03
Frequently asked questions
- What is Kristine Breyer's NPI number?
- Kristine Breyer's National Provider Identifier (NPI) is 1669637575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristine Breyer's specialty?
- Kristine Breyer is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Kristine Breyer located?
- Kristine Breyer's practice location on file with NPPES is 513 Parnassus Ave, San Francisco, CA 94143-0470.
- What is Kristine Breyer's phone number?
- The practice phone number listed in the NPPES registry for Kristine Breyer is (415) 476-1239.
- Does Kristine Breyer accept Medicare?
- Kristine Breyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristine Breyer's NPI active?
- Yes — Kristine Breyer's NPI (1669637575) is active in the NPPES registry as of the last update on 2013-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.