Christopher Barnett, MD, MPH
NPI 1538127717 · Critical Care Medicine (Internal Medicine) Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Barnett, MD, MPH is a Critical Care Medicine (Internal Medicine) Physician provider in San Francisco, CA (NPI 1538127717).
Provider details
- NPI number
- 1538127717
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- A99520 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
425 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 251 | $229 |
| Critical Care, Each Additional 30 Minutes99292 | 82 | $115 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 38 | $162 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 22 | $19 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 19 | $132 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Macitentanbrand: Opsumit | 86 | 11 |
| Tadalafil | 68 | 13 |
| Ambrisentan | 32 | — |
| Selexipagbrand: Uptravi | 32 | — |
| Treprostinil Diolaminebrand: Orenitram Er | 27 | — |
| Spironolactone | 24 | 12 |
| Sotatercept-Csrkbrand: Winrevair | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14,487 across 30 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2021-10-14
- Certified
- 2021-10-14
Frequently asked questions
- What is Christopher Barnett's NPI number?
- Christopher Barnett's National Provider Identifier (NPI) is 1538127717, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Barnett's specialty?
- Christopher Barnett is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Barnett located?
- Christopher Barnett's practice location on file with NPPES is 535 Mission Bay Blvd S, San Francisco, CA 94143-2156.
- What is Christopher Barnett's phone number?
- The practice phone number listed in the NPPES registry for Christopher Barnett is (415) 353-3109.
- Does Christopher Barnett accept Medicare?
- Christopher Barnett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Barnett's NPI active?
- Yes — Christopher Barnett's NPI (1538127717) is active in the NPPES registry as of the last update on 2021-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.