Anna Alquiza, M.D.
NPI 1639177850 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Alquiza, M.D. is a Internal Medicine Physician provider in Houston, TX (NPI 1639177850).
Provider details
- NPI number
- 1639177850
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- L9066 (TX)
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
272 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 173 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 55 | $91 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 44 | $130 |
Typical Medicare-allowed amounts for these services range $91–$130 (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 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 140 | 77 |
| Atorvastatin Calcium | 132 | 61 |
| Losartan Potassium | 106 | 51 |
| Amlodipine Besylate | 88 | 48 |
| Levothyroxine Sodium | 65 | 35 |
| Metformin Hcl | 63 | 33 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (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
Additional practice locations (2)
- 929 Gessner Rd Ste 1500Houston, TX 77024-2675Phone: (713) 442-5200
- 611 N Bryan RdMission, TX 78572Phone: (956) 580-3303Fax: (956) 580-1505
Registry dates
- Enumerated
- 2005-07-12
- Last updated
- 2025-11-25
- Certified
- 2025-11-25
Frequently asked questions
- What is Anna Alquiza's NPI number?
- Anna Alquiza's National Provider Identifier (NPI) is 1639177850, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Alquiza's specialty?
- Anna Alquiza is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Alquiza located?
- Anna Alquiza's practice location on file with NPPES is 929 Gessner Rd Ste 2450, Houston, TX 77024-2593.
- What is Anna Alquiza's phone number?
- The practice phone number listed in the NPPES registry for Anna Alquiza is (713) 464-9939.
- Does Anna Alquiza accept Medicare?
- Anna Alquiza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Alquiza's NPI active?
- Yes — Anna Alquiza's NPI (1639177850) is active in the NPPES registry as of the last update on 2025-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.