William Flores
NPI 1639537608 · Hospitalist Physician · Forest Hills, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Flores is a Hospitalist Physician provider in Forest Hills, NY (NPI 1639537608).
Provider details
- NPI number
- 1639537608
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 299666 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
800 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 35 Minutes99232 | 630 | $93 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 121 | $135 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 49 | $155 |
Typical Medicare-allowed amounts for these services range $93–$155 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 24 | 11 |
| Tamsulosin Hcl | 21 | — |
| Sitagliptin Phosphatebrand: Januvia | 17 | — |
| Apixabanbrand: Eliquis | 15 | — |
| Amlodipine Besylate | 13 | — |
| Prednisone | 12 | 11 |
| Amoxicillin/Potassium Clav |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-02-05
- Last updated
- 2025-07-24
- Certified
- 2025-07-24
Frequently asked questions
- What is William Flores's NPI number?
- William Flores's National Provider Identifier (NPI) is 1639537608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Flores's specialty?
- William Flores is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is William Flores located?
- William Flores's practice location on file with NPPES is 10201 66th Rd, Forest Hills, NY 11375-2029.
- What is William Flores's phone number?
- The practice phone number listed in the NPPES registry for William Flores is (787) 930-7314.
- Does William Flores accept Medicare?
- William Flores is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Flores's NPI active?
- Yes — William Flores's NPI (1639537608) is active in the NPPES registry as of the last update on 2025-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.