DR. GABRIEL FERNANDO SANTIAGO M.D.
NPI 1851608954
Neurological Surgery in Mc Lean, VA

Active since September 10, 2010PECOS EnrolledAccepts Medicare Assignment
1300 CHAIN BRIDGE RD FL 2, MC LEAN, VA 22101(703) 688-8918 Get Directions Write a Review

NPPES record last updated: November 20, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 20, 2024, Sep 20, 2016 (2 updates tracked since 2016).

About Dr. Gabriel Fernando Santiago M.d. NPPES

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

DR. GABRIEL FERNANDO SANTIAGO M.D. (NPI 1851608954) is an individual neurological surgery provider in Mc Lean, Virginia, licensed in Maryland (D0081920) and active in the NPI registry since September 2010. He is enrolled in Medicare PECOS, is affiliated with St Mary Medical Center, and maintains a secondary practice location in Baltimore.

NPPES Registry Identity

NPI1851608954
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameDR. GABRIEL FERNANDO SANTIAGOCredential: M.D.
Location Address1300 CHAIN BRIDGE RD FL 2Mc Lean, VA 22101-3935
Mailing Address601 N Caroline St, Jhoc 8161Baltimore, MD 21287-0006
Sole ProprietorNo
Medical School CMSIcahn School Of Medicine At Mount SinaiGraduated 2010
Enumeration DateSeptember 10, 2010
Last NPPES UpdateNovember 20, 20242 updates tracked since enumeration
NPPES CertifiedNovember 20, 2024
✔ NPI 1851608954 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in MD · D0081920
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
Also ListedOtolaryngologyTaxonomy 207Y00000X · License D81920 (MD)
Also ListedSurgery · Plastic and Reconstructive SurgeryTaxonomy 2086S0122X · License D0081920 (MD)
1300 CHAIN BRIDGE RD FL 2, Mc Lean, VA 22101

Secondary Practice Location 1

Location 1601 N Caroline St, JHOC 8161Baltimore, MD 21287-0006 · Phone (410) 955-9472 · Fax (410) 614-1296

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

Dr. Gabriel Fernando 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 ID5294023651
PECOS Enrollment IDI20161024000061, I20200827003803
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

6

Medicare enrollment records show Gabriel Santiago reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Otolaryngology
1300 CHAIN BRIDGE RD FL 2
Mc Lean, VA 22101
  • Reassigned Medicare billing, District of Columbia enrollment
Neurological Surgery
8600 OLD GEORGETOWN RD
Bethesda, MD 20814
  • Reassigned Medicare billing, Maryland enrollment
  • 4,483 clinicians in this Medicare group
Neurological Surgery
3300 GALLOWS RD
Falls Church, VA 22042
  • Reassigned Medicare billing, District of Columbia enrollment
Specialist
7251 PREINKERT DRIVE 0110 LEFRAK HALL
College Park, MD 20742
  • Reassigned Medicare billing, Maryland enrollment
  • 36 clinicians in this Medicare group
Neurological Surgery
3100 PRINCETON PIKE BLDG 3, SUITE D
Lawrenceville, NJ 08648
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 25 clinicians in this Medicare group
Internal Medicine
110 MAIN STREET
Dushore, PA 18614
  • Reassigned Medicare billing, Pennsylvania enrollment
  • Medicare enrollment name: Guthrie Medical Group PC
  • 830 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare 2

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

St Mary Medical Center

Acute Care Hospitals · Langhorne, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390258
LocationLanghorne-Newtown RdLanghorne, PA 19047 · Bucks County
Emergency services

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490063
Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22101 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
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

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

Otolaryngology
1300 CHAIN BRIDGE RD FL 2
MC LEAN, VA 22101

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 Gabriel Santiago's NPI number?

The NPI number for Gabriel Santiago is 1851608954. It was assigned to this individual provider in the NPPES registry on September 10, 2010.

Where is Gabriel Santiago located?

Gabriel Santiago practices at 1300 Chain Bridge Rd Fl 2, Mc Lean, VA 22101. The listed phone number is (703) 688-8918.

What is Gabriel Santiago's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Gabriel Santiago enrolled in Medicare?

Yes. Gabriel 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 Gabriel Santiago's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gabriel Santiago reassigns Medicare benefits to 6 organizations: Mclean Rhinoplasty, Ent & Sinus PLLC (Mc Lean, VA), Johns Hopkins University (Bethesda, MD), Aesthetic Medicine And Surgery, PLLC (Falls Church, VA), Univ Of Maryland Otorhinolaryngology Head & Neck Surgery PA (College Park, MD), Gni Neuroservices LLC (Lawrenceville, NJ) and 1 more organization, listed in the Medicare section above. 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 Gabriel Santiago's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Gabriel Santiago affiliated with any hospitals?

According to CMS data, Gabriel Santiago is affiliated with St Mary Medical Center and Inova Fairfax Hospital.

When was this NPI record last updated?

The NPPES record for Gabriel Santiago was last updated on November 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.