Ulf Fritz Bredeek Mendes, M.D., PHD
NPI 1689667495 · Infectious Disease Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ulf Fritz Bredeek Mendes, M.D., PHD is a Infectious Disease Physician provider in Redwood City, CA (NPI 1689667495).
Provider details
- NPI number
- 1689667495
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 31728 (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
20 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
238 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 | 106 | $138 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 67 | $202 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 65 | $224 |
Typical Medicare-allowed amounts for these services range $138–$224 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 56 |
| Atorvastatin Calcium | 34 |
| Lisinopril | 28 |
| Dolutegravir Sodiumbrand: Tivicay | 27 |
| Dolutegravir/Rilpivirinebrand: Juluca | 24 |
| Hydrochlorothiazide | 18 |
| Finasteride | 14 |
| Fostemsavir Tromethaminebrand: Rukobia | 14 |
| Lamivudine | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$41 across 2 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
- 2005-08-26
- Last updated
- 2023-09-08
- Certified
- 2023-09-08
Frequently asked questions
- What is Ulf Fritz Bredeek Mendes's NPI number?
- Ulf Fritz Bredeek Mendes's National Provider Identifier (NPI) is 1689667495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ulf Fritz Bredeek Mendes's specialty?
- Ulf Fritz Bredeek Mendes is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ulf Fritz Bredeek Mendes located?
- Ulf Fritz Bredeek Mendes's practice location on file with NPPES is 2900 Whipple Ave Ste 132, Redwood City, CA 94062-2844.
- What is Ulf Fritz Bredeek Mendes's phone number?
- The practice phone number listed in the NPPES registry for Ulf Fritz Bredeek Mendes is (650) 817-2117.
- Does Ulf Fritz Bredeek Mendes accept Medicare?
- Ulf Fritz Bredeek Mendes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ulf Fritz Bredeek Mendes's NPI active?
- Yes — Ulf Fritz Bredeek Mendes's NPI (1689667495) is active in the NPPES registry as of the last update on 2023-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.