DR. ULF FRITZ BREDEEK MENDES (M.D., PHD) – Infectious Disease Physician, NPI 1689667495
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,003 INFECTIOUS DISEASE in CA
Provider Addresses for DR. ULF FRITZ BREDEEK MENDES (M.D., PHD)
PO BOX 641230
SAN FRANCISCO, CA 94164
Phone: (415) 292-5477
Fax: (415) 292-5490
Type: Mailing
3400 DATA DR
RANCHO CORDOVA, CA 956707956
Phone:
Type: Mailing
2950 WHIPPLE AVE STE 3
REDWOOD CITY, CA 940622842
Phone: (650) 817-2117
Fax: (650) 817-2119
Type: Location
Colombini, 815;827, Hyde Street, Tenderloin, San Francisco, California, 94164, United States
SUITE 301
SAN FRANCISCO, CA 941095996
Phone: (415) 292-5477
Fax: (415) 292-5490
Type: Location
2900 WHIPPLE AVE STE 132
REDWOOD CITY, CA 940622844
Phone: (650) 817-2117
Fax: (650) 817-2119
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $3,102.
Total Amount is formed as General ($3,102) + Research ($0) + Ownership ($0) = $3,102.
Last reported payment date: 2024-10-23 • Largest payer in this snapshot: ViiV Healthcare Company ($3,102).
Total Amount
$3,102
General + Research + Ownership
Payments
4
Total payment records
General Amount
$3,102
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ViiV Healthcare Company | $3,102 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-02-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20060202000348 | I | Infectious Disease | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 123 | 48 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 71 | 65 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 38 | 19 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 28 | 17 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 16 | 12 | $0 |
Insurance plans in this area (ZIP 94164)
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