Juana Gamarra De Williams, MD
NPI 1619098852 · Family Medicine Physician · Fort Worth, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Juana Gamarra De Williams, MD is a Family Medicine Physician provider in Fort Worth, TX (NPI 1619098852).
Provider details
- NPI number
- 1619098852
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 225024 (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
19 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
78 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 59 | $96 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 19 | $65 |
Typical Medicare-allowed amounts for these services range $65–$96 (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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 84 | 46 |
| Metformin Hcl | 73 | 39 |
| Atorvastatin Calcium | 71 | 46 |
| Levothyroxine Sodium | 33 | 15 |
| Gabapentin | 33 | 15 |
| Fluticasone Propionate | 30 | 19 |
| Pioglitazone Hcl | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-03
- Last updated
- 2011-06-03
Frequently asked questions
- What is Juana Gamarra De Williams's NPI number?
- Juana Gamarra De Williams's National Provider Identifier (NPI) is 1619098852, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Juana Gamarra De Williams's specialty?
- Juana Gamarra De Williams is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Juana Gamarra De Williams located?
- Juana Gamarra De Williams's practice location on file with NPPES is 855 Montgomery, Fort Worth, TX 76107-2553.
- What is Juana Gamarra De Williams's phone number?
- The practice phone number listed in the NPPES registry for Juana Gamarra De Williams is (817) 920-7400.
- Does Juana Gamarra De Williams accept Medicare?
- Juana Gamarra De Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Juana Gamarra De Williams's NPI active?
- Yes — Juana Gamarra De Williams's NPI (1619098852) is active in the NPPES registry as of the last update on 2011-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.