Asim Ayaz, M.D.
NPI 1144509563 · Hospitalist Physician · Sullivan, MO
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Asim Ayaz, M.D. is a Hospitalist Physician provider in Sullivan, MO (NPI 1144509563).
Provider details
- NPI number
- 1144509563
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2014015811 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
934 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 | 322 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 238 | $113 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 169 | $108 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 64 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 55 | $164 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 104 | 51 |
| Cefdinir | 74 | 73 |
| Furosemide | 67 | 29 |
| Prednisone | 50 | 44 |
| Amlodipine Besylate | 39 | 15 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 39 | 39 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Practice location
Mailing address
Additional practice locations (2)
- 1 Memorial DrAlton, IL 62002-6722Phone: (618) 463-7240
- 3015 N Ballas RdSaint Louis, MO 63131-2329Phone: (314) 996-5772
Registry dates
- Enumerated
- 2011-08-16
- Last updated
- 2023-02-01
- Certified
- 2023-02-01
Frequently asked questions
- What is Asim Ayaz's NPI number?
- Asim Ayaz's National Provider Identifier (NPI) is 1144509563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Asim Ayaz's specialty?
- Asim Ayaz is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Asim Ayaz located?
- Asim Ayaz's practice location on file with NPPES is 751 Sappington Bridge Rd, Sullivan, MO 63080-2354.
- What is Asim Ayaz's phone number?
- The practice phone number listed in the NPPES registry for Asim Ayaz is (573) 468-4186.
- Does Asim Ayaz accept Medicare?
- Asim Ayaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Asim Ayaz's NPI active?
- Yes — Asim Ayaz's NPI (1144509563) is active in the NPPES registry as of the last update on 2023-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.