Jonathan Singer, MD
NPI 1932122462 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Singer, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1932122462).
Provider details
- NPI number
- 1932122462
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A94715 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
401 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 152 | $131 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 59 | $160 |
| 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 | 42 | $19 |
| Irrigation and Suction of Lung Airways to Obtain Cells Using an Endoscope31624 | 41 | $20 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 41 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 120 | 39 |
| Prednisone | 105 | 29 |
| Valganciclovir Hcl | 101 | 29 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 67 | 20 |
| Dapsone | 63 | 19 |
| Tacrolimus | 63 | 22 |
| Fluconazole | 43 | 17 |
| Mycophenolate Mofetil |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,620 across 4 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
- 2006-07-25
- Last updated
- 2009-04-07
Frequently asked questions
- What is Jonathan Singer's NPI number?
- Jonathan Singer's National Provider Identifier (NPI) is 1932122462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Singer's specialty?
- Jonathan Singer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Singer located?
- Jonathan Singer's practice location on file with NPPES is # M1097, San Francisco, CA 94143-0001.
- What is Jonathan Singer's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Singer is (415) 386-2195.
- Does Jonathan Singer accept Medicare?
- Jonathan Singer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Singer's NPI active?
- Yes — Jonathan Singer's NPI (1932122462) is active in the NPPES registry as of the last update on 2009-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.