Cesar Santillana, MD
NPI 1063974889 · Internal Medicine Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cesar Santillana, MD is a Internal Medicine Physician provider in Tucson, AZ (NPI 1063974889).
Provider details
- NPI number
- 1063974889
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD2022-1447 (NM)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
726 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 275 | $163 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 165 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 113 | $112 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 61 | $49 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 55 | $109 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 37 | 20 |
| Atorvastatin Calcium | 29 | 15 |
| Losartan Potassium | 25 | — |
| Famotidine | 23 | — |
| Levetiracetam | 23 | — |
| Carvedilol | 21 | — |
| Hydralazine Hcl | 20 | — |
Practice location
Mailing address
Additional practice locations (5)
- 820 Prudential Dr Ste 304Jacksonville, FL 32207-8205Phone: (904) 202-3860
- 11750 Bird RdMiami, FL 33175-3530Phone: (305) 223-2000Fax: (305) 227-5556
- 190 Sandy Springs Pl NeSuite 100Atlanta, GA 30328-5908Phone: (404) 383-4045
- 4500 Memorial DrBelleville, IL 62226-5360Phone: (618) 257-6220
- 4801 Ambassador Caffery PkwyLafayette, LA 70508-6917Phone: (337) 470-2605Fax: (337) 470-4595
Registry dates
- Enumerated
- 2019-04-01
- Last updated
- 2025-04-30
- Certified
- 2025-04-30
Frequently asked questions
- What is Cesar Santillana's NPI number?
- Cesar Santillana's National Provider Identifier (NPI) is 1063974889, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cesar Santillana's specialty?
- Cesar Santillana is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cesar Santillana located?
- Cesar Santillana's practice location on file with NPPES is 1601 W Saint Marys Rd, Tucson, AZ 85745-2623.
- What is Cesar Santillana's phone number?
- The practice phone number listed in the NPPES registry for Cesar Santillana is (520) 622-5833.
- Does Cesar Santillana accept Medicare?
- Cesar Santillana is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cesar Santillana's NPI active?
- Yes — Cesar Santillana's NPI (1063974889) is active in the NPPES registry as of the last update on 2025-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.