DR. JOHN ROBERT NIENOW (MD) – Infectious Disease Physician, NPI 1861472649
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Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
Provider Addresses for DR. JOHN ROBERT NIENOW (MD)
2300 CALIFORNIA ST STE 306
SAN FRANCISCO, CA 941152754
Phone: (415) 202-1550
Fax: (415) 776-8233
Type: Mailing
558 Clayton St
PSSB G500
San Francisco, CA 941172907
Phone: (415) 746-1950
Fax: (415) 431-9909
Type: Location
2186 GEARY BLVD STE 314
SAN FRANCISCO, CA 941153457
Phone: (415) 202-1550
Fax: (415) 776-8233
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 112 Open Payments records for all available years, with a total value of $7,738.
Total Amount is formed as General ($7,738) + Research ($0) + Ownership ($0) = $7,738.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Gilead Sciences, Inc. ($5,743).
Total Amount
$7,738
General + Research + Ownership
Payments
112
Total payment records
General Amount
$7,738
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Gilead Sciences, Inc. | $5,743 |
| Theratechnologies Inc. | $821 |
| EMD Serono, Inc. | $757 |
| ViiV Healthcare Company | $385 |
| Merck Sharp & Dohme LLC | $33 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
No Medicare enrollment or revalidation data available for this provider in our database.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 333 | 155 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 330 | 124 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 27 | 27 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 25 | 25 | $0 |
Insurance plans in this area (ZIP 94115)
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