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FERNANDO LUIS SANTIAGO M.D.
NPI 1861435026
Psychiatry & Neurology - Neurology in Orlando, FL

Active since June 14, 2006PECOS EnrolledAccepts Medicare Assignment
265 E ROLLINS ST # 6, ORLANDO, FL 32804(407) 303-6729(407) 628-2037 Get Directions Write a Review

NPPES record last updated: August 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 3, 2026, May 18, 2026, Jan 3, 2024 and 1 more (4 updates tracked since 2016).

About Fernando Luis Santiago M.d. NPPES

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

FERNANDO LUIS SANTIAGO M.D. (NPI 1861435026) is an individual neurology provider in Orlando, Florida, licensed in Florida (ME125944) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Adventhealth Orlando, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1861435026
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameFERNANDO LUIS SANTIAGOCredential: M.D.
Location Address265 E ROLLINS ST # 6Orlando, FL 32804-5502
Mailing Address1685 Lee Rd Ste 210Winter Park, FL 32789-2235 · (407) 303-6729 · Fax (407) 628-2037
Phone(407) 303-6729
Fax(407) 628-2037
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateJune 14, 2006
Last NPPES UpdateAugust 3, 20264 updates tracked since enumeration
NPPES CertifiedAugust 3, 2026
✔ NPI 1861435026 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses✔ Licensed in FL · ME125944✔ Licensed in IN · 01099640A✔ Licensed in PR · 13734
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
265 E ROLLINS ST # 6, Orlando, FL 32804
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Other Names 1

Other Name (5)Fernando Luis Santiago Castillo

Secondary Practice Locations 2

Location 1601 E Rollins St, Tri-County NeurologyOrlando, FL 32803-1248 · Phone (407) 303-6729 · Fax (407) 628-2037
Location 23500 Franciscan Way Ste 300Michigan City, IN 46360-0033 · Phone (219) 877-1101 · Fax (219) 214-4568

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Fernando Luis Santiago M.d. 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 ID5698748044
PECOS Enrollment IDI20160505000823
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.

Medicare Billing Reassignments

4

Medicare enrollment records show Fernando Santiago reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Strokepr-LLC
0.2 mi
Vascular Neurology
601 E ROLLINS ST
Orlando, FL 32803
  • Reassigned Medicare billing, Florida enrollment
NPI 1467929786 (407) 303-5600
Florida Hospital Medical Group Inc
2.0 mi
Family Medicine
1115 E RIDGEWOOD ST
Orlando, FL 32803
  • Reassigned Medicare billing, Florida enrollment
  • 3,005 clinicians in this Medicare group
NPI 1225034234 (407) 841-1100
Franciscan Physician Network
809 mi
Family Medicine
8111 S EMERSON AVE
Indianapolis, IN 46237
  • Reassigned Medicare billing, Indiana enrollment
  • 1,396 clinicians in this Medicare group
NPI 1225327984 (317) 528-4800
Mercy Health Physicians Youngstown Specialty Care LLC
865 mi
Dentist
1044 BELMONT AVE
Youngstown, OH 44504
  • Reassigned Medicare billing, Ohio enrollment
  • 744 clinicians in this Medicare group
NPI 1609544055 (330) 746-7211

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

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.
320 services307 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.
237 services188 patients
Measurement of brain wave activity (eeg), awake and drowsy 95816
Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.
40 services39 patients
Measurement of brain wave activity (eeg), awake and asleep 95819
The measurement of brain wave activity, known as an EEG, records the brain's electrical signals. It's performed when you're awake and asleep to monitor your brain's functioning. It helps in diagnosing conditions like epilepsy, sleep disorders, and other neurological issues.
37 services37 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.
20 services17 patients

Hospital Affiliations CMS Care Compare

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

Adventhealth Orlando

Acute Care Hospitals · Orlando, FL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100007
Location601 E Rollins StOrlando, FL 32803 · Orange County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32804 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
$130.04 typical visit price
range $56.00 – $171.84
Typical copayment $32.51 (range $14.00 – $42.96)
Most-billed visit code 99204
Established Patient
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
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 13

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

ROMAN MARCUS CARRASCO PSY.D.
Clinical Neuropsychologist
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 821-3584
MADELINE ELLIS TRAD FNP-BC
Nurse Practitioner (Family)
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 303-6729
UGOMMA ONYEUKWU CNP
Nurse Practitioner (Family)
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 303-6729
DR. DANIEL EBELE OKOBI JR. M.D., PH.D.
Psychiatry & Neurology (Neurology)
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 303-6729
MARY CARMEN HERNANDEZ PA
Physician Assistant
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 303-6729
DR. AMANDA WHITLEIGH FLETCHER
Psychiatry & Neurology (Neurology)
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 303-6729
DHARANI MUDUGAL M.D.
Psychiatry & Neurology (Neurology)
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 303-6729
DR. HATIM ATTAR
Psychiatry & Neurology (Neurology)
265 E ROLLINS ST # 6
ORLANDO, FL 32804
Orange County (407) 303-6729

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 Fernando Santiago's NPI number?

The NPI number for Fernando Santiago is 1861435026. It was assigned to this individual provider in the NPPES registry on June 14, 2006. The provider is also known as Fernando Luis Santiago Castillo.

Where is Fernando Santiago located?

Fernando Santiago practices at 265 E Rollins St # 6, Orlando, FL 32804. The listed phone number is (407) 303-6729.

What is Fernando Santiago's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Fernando Santiago enrolled in Medicare?

Yes. Fernando Santiago 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.

Which organizations bill Medicare for Fernando Santiago's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Fernando Santiago reassigns Medicare benefits to 4 organizations: Strokepr-LLC (Orlando, FL), Florida Hospital Medical Group Inc (Orlando, FL), Franciscan Physician Network (Indianapolis, IN) and Mercy Health Physicians Youngstown Specialty Care LLC (Youngstown, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Fernando Santiago's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Fernando Santiago accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Fernando Santiago 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 Fernando Santiago affiliated with any hospitals?

According to CMS data, Fernando Santiago is affiliated with Adventhealth Orlando.

When was this NPI record last updated?

The NPPES record for Fernando Santiago was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.