Adam Simons, M.D.
NPI 1588892210 · Hospitalist Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adam Simons, M.D. is a Hospitalist Physician provider in San Francisco, CA (NPI 1588892210).
Provider details
- NPI number
- 1588892210
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,136 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 50 Minutes99233 | 840 | $132 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 177 | $130 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 108 | $193 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 11 | $145 |
Typical Medicare-allowed amounts for these services range $130–$193 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ciprofloxacin Hcl | 21 | 14 |
| Pantoprazole Sodium | 21 | 20 |
| Furosemide | 19 | 17 |
| Amiodarone Hcl | 17 | 16 |
| Apixabanbrand: Eliquis | 17 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 15 | 15 |
| Tramadol Hcl | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-01
- Last updated
- 2014-09-04
Frequently asked questions
- What is Adam Simons's NPI number?
- Adam Simons's National Provider Identifier (NPI) is 1588892210, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adam Simons's specialty?
- Adam Simons is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Adam Simons located?
- Adam Simons's practice location on file with NPPES is 2351 Clay St, San Francisco, CA 94115-1931.
- What is Adam Simons's phone number?
- The practice phone number listed in the NPPES registry for Adam Simons is (415) 600-3458.
- Does Adam Simons accept Medicare?
- Adam Simons is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adam Simons's NPI active?
- Yes — Adam Simons's NPI (1588892210) is active in the NPPES registry as of the last update on 2014-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.