Mark Looney, MD
NPI 1386692721 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Looney, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1386692721).
Provider details
- NPI number
- 1386692721
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A69928 (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
20 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
156 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 | 78 | $231 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 18 | $131 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $192 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 16 | $88 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 15 | $145 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-05
- Last updated
- 2008-07-30
Frequently asked questions
- What is Mark Looney's NPI number?
- Mark Looney's National Provider Identifier (NPI) is 1386692721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Looney's specialty?
- Mark Looney is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Looney located?
- Mark Looney's practice location on file with NPPES is 513 Parnassus Ave, San Francisco, CA 94143-2205.
- What is Mark Looney's phone number?
- The practice phone number listed in the NPPES registry for Mark Looney is (415) 353-1116.
- Does Mark Looney accept Medicare?
- Mark Looney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Looney's NPI active?
- Yes — Mark Looney's NPI (1386692721) is active in the NPPES registry as of the last update on 2008-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.