DR. CESAR ABRAHAM SANTILLANA MD
NPI 1063974889
Internal Medicine in Tucson, AZ

Active since April 01, 2019PECOS EnrolledAccepts Medicare Assignment
1601 W SAINT MARYS RD, TUCSON, AZ 85745(520) 622-5833 Get Directions Write a Review

NPPES record last updated: April 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 19, 2025, Feb 11, 2025, Dec 23, 2024 and 3 more (6 updates tracked since 2019).

About Dr. Cesar Abraham Santillana Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CESAR ABRAHAM SANTILLANA MD (NPI 1063974889) is an individual internal medicine provider in Tucson, Arizona, licensed in Florida (ME153137) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1063974889
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CESAR ABRAHAM SANTILLANACredential: MD
Location Address1601 W SAINT MARYS RDTucson, AZ 85745-2623
Mailing Address11342 Sw 71st LnMiami, FL 33173-1970 · (305) 793-4750
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 1, 2019
Last NPPES UpdateApril 30, 20256 updates tracked since enumeration
NPPES CertifiedApril 30, 2025
NPI 1063974889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in FL · ME153137 Licensed in NM · MD2022-1447 Licensed in IL · 036162486
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 036162486 (IL), 339579 (LA)
1601 W SAINT MARYS RD, Tucson, AZ 85745

Secondary Practice Locations 5

Location 14500 Memorial DrBelleville, IL 62226-5360 · Phone (618) 257-6220
Location 211750 Bird RdMiami, FL 33175-3530 · Phone (305) 223-2000 ext. 6720 · Fax (305) 227-5556
Location 3190 Sandy Springs Pl NE, Suite 100Atlanta, GA 30328-5908 · Phone (404) 383-4045
Location 4820 Prudential Dr Ste 304Jacksonville, FL 32207-8205 · Phone (904) 202-3860
Location 54801 Ambassador Caffery PkwyLafayette, LA 70508-6917 · Phone (337) 470-2605 · Fax (337) 470-4595

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Cesar Abraham Santillana Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133508146
PECOS Enrollment IDI20230222002276, I20230914000155, I20240425000517, I20240619001264, I20250424002397, I20250909001353
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
275 services273 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
165 services93 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
113 services65 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
61 services25 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
55 services54 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
42 services42 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Hospital

Acute Care Hospitals · Belleville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140185
Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County
Emergency services Birthing friendly

Baptist Health Hardin

Acute Care Hospitals · Elizabethtown, KY
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number180012
Location913 North Dixie AvenueElizabethtown, KY 42701 · Hardin County
Emergency services

Mcleod Regional Medical Center-Pee Dee

Acute Care Hospitals · Florence, SC
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number420051
Location555 E Cheves St Box 8700Florence, SC 29506 · Florence County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85745 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Emergency Medicine
1601 W SAINT MARYS RD
TUCSON, AZ 85745
Psychologist (Rehabilitation)
1601 W SAINT MARYS RD
TUCSON, AZ 85745
Registered Nurse (Psychiatric/Mental Health)
1601 W SAINT MARYS RD
TUCSON, AZ 85745
Nurse Anesthetist, Certified Registered
1601 W SAINT MARYS RD
TUCSON, AZ 85745
Nurse Practitioner (Family)
1601 W SAINT MARYS RD
TUCSON, AZ 85745
Radiology (Diagnostic Radiology)
1601 W SAINT MARYS RD
TUCSON, AZ 85745
Speech-Language Pathologist
1601 W SAINT MARYS RD
TUCSON, AZ 85745
Nurse Practitioner (Family)
1601 W SAINT MARYS RD
TUCSON, AZ 85745

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cesar Santillana's NPI number?

The NPI number for Cesar Santillana is 1063974889. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Where is Cesar Santillana located?

Cesar Santillana practices at 1601 W Saint Marys Rd, Tucson, AZ 85745. The listed phone number is (520) 622-5833.

What is Cesar Santillana's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Cesar Santillana enrolled in Medicare?

Yes. Cesar Santillana is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Cesar Santillana accept?

Health plans from Antidote Health Plan of Arizona, Inc., Blue Cross Blue Shield of Arizona, HMO Louisiana, Imperial Insurance Companies, Inc. and Oscar Health Maintenance Organization of Florida and 1 other insurer list Cesar Santillana as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Cesar Santillana affiliated with any hospitals?

According to CMS data, Cesar Santillana is affiliated with Memorial Hospital, Baptist Health Hardin and Mcleod Regional Medical Center-Pee Dee.

When was this NPI record last updated?

The NPPES record for Cesar Santillana was last updated on April 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.