Alan Gonzalez Zapata, M.D.
NPI 1134658321 · Sleep Medicine (Internal Medicine) Physician · Topeka, KS
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Gonzalez Zapata, M.D. is a Sleep Medicine (Internal Medicine) Physician provider in Topeka, KS (NPI 1134658321).
Provider details
- NPI number
- 1134658321
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4-44799 (KS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,568 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 | 578 | $118 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 201 | $9 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 166 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 117 | $80 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 114 | $118 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 366 | 103 |
| Atorvastatin Calcium | 313 | 93 |
| Amlodipine Besylate | 212 | 61 |
| Losartan Potassium | 208 | 55 |
| Levothyroxine Sodium | 179 | 49 |
| Tamsulosin Hcl | 169 | 49 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$608 across 28 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
Additional practice locations (1)
- 1 Hospital Dr Dept ofColumbia, MO 65212-1000Phone: (573) 882-8668
Registry dates
- Enumerated
- 2017-06-09
- Last updated
- 2022-03-17
- Certified
- 2022-03-17
Frequently asked questions
- What is Alan Gonzalez Zapata's NPI number?
- Alan Gonzalez Zapata's National Provider Identifier (NPI) is 1134658321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Gonzalez Zapata's specialty?
- Alan Gonzalez Zapata is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Gonzalez Zapata located?
- Alan Gonzalez Zapata's practice location on file with NPPES is 631 Sw Horne St Ste 300, Topeka, KS 66606-1663.
- What is Alan Gonzalez Zapata's phone number?
- The practice phone number listed in the NPPES registry for Alan Gonzalez Zapata is (785) 232-4248.
- Does Alan Gonzalez Zapata accept Medicare?
- Alan Gonzalez Zapata is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Gonzalez Zapata's NPI active?
- Yes — Alan Gonzalez Zapata's NPI (1134658321) is active in the NPPES registry as of the last update on 2022-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.