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DR. NATHANIEL JOSEPH BROWN MD, PHD
NPI 1750657755
Anesthesiology in Santa Fe, NM

Active since March 24, 2012PECOS EnrolledAccepts Medicare Assignment
455 SAINT MICHAELS DR, SANTA FE, NM 87505(505) 913-3065 Get Directions Write a Review

NPPES record last updated: November 3, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 3, 2025, Jul 21, 2022, Nov 16, 2018 and 3 more (6 updates tracked since 2017).

About Dr. Nathaniel Joseph Brown Md, Phd NPPES

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

DR. NATHANIEL JOSEPH BROWN MD, PHD (NPI 1750657755) is an individual anesthesiology provider in Santa Fe, New Mexico, licensed in New Mexico (MD2025-1115) and active in the NPI registry since March 2012. He is enrolled in Medicare PECOS, is affiliated with Christus St Vincent Regional Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1750657755
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. NATHANIEL JOSEPH BROWNCredential: MD, PHD
Location Address455 SAINT MICHAELS DRSanta Fe, NM 87505-7601
Mailing Address1700 N Wheeling St, Rocky Mountain Regional Vamc -- AnesthesiologyAurora, CO 80045 · (303) 399-8020
Phone(505) 913-3065
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2012
Enumeration DateMarch 24, 2012
Last NPPES UpdateNovember 3, 20256 updates tracked since enumeration
NPPES CertifiedNovember 3, 2025
✔ NPI 1750657755 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in NM · MD2025-1115✔ Licensed in NH · 18057✔ Licensed in CO · DR0057098
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
455 SAINT MICHAELS DR, Santa Fe, NM 87505
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Secondary Practice Locations 3

Location 11700 N Wheeling St, Rocky Mountain Regional VAMC -- AnesthesiologyAurora, CA 80045 · Phone (303) 399-8020
Location 21 Medical Center Dr, Dartmouth Hitchcock - AnesthesiologyLebanon, NH 03756-1000 · Phone (603) 650-5922
Location 313001 E 17th PlAurora, CO 80045-2570 · Phone (303) 724-6031

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. Nathaniel Joseph Brown Md, Phd 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 ID244535938
PECOS Enrollment IDI20260121001193
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 Reassignment

Medicare enrollment records show Nathaniel Brown reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

St. Vincent Hospital
Same address
Infectious Disease
455 SAINT MICHAELS DR
Santa Fe, NM 87505
  • Reassigned Medicare billing, New Mexico enrollment
  • 399 clinicians in this Medicare group
NPI 1215437033 (505) 000-0000

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

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

Christus St Vincent Regional Medical Center

Acute Care Hospitals · Santa Fe, NM
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number320002
Location455 St Michael's DriveSanta Fe, NM 87505 · Santa Fe County
Emergency services Birthing friendly

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.

DR. WILLIAM KINLAW M.D.
Emergency Medicine
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 983-3361
MATTHEW JOSEPH MEEHAN FNP-C
Nurse Practitioner
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 603-4163
SANTA FE PATHOLOGY SERVICES PA
Pathology (Anatomic Pathology & Clinical Pathology)
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 820-5302
SCOTT LOWE ROSSOL MD
Pediatrics
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 913-6130
MR. ROBERT SHIRLEY PH.C.
Pharmacist (Pharmacotherapy)
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 820-5287
DAVID GALLAGHER CRNA
Nurse Anesthetist, Certified Registered
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 983-3361
TEAYOUNG KIM MD
Internal Medicine
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 913-3361
VANESSA KITZIS MD
Internal Medicine (Critical Care Medicine)
455 SAINT MICHAELS DR
SANTA FE, NM 87505
Santa Fe County (505) 984-2600

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 Nathaniel Brown's NPI number?

The NPI number for Nathaniel Brown is 1750657755. It was assigned to this individual provider in the NPPES registry on March 24, 2012.

Where is Nathaniel Brown located?

Nathaniel Brown practices at 455 Saint Michaels Dr, Santa Fe, NM 87505. The listed phone number is (505) 913-3065.

What is Nathaniel Brown's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Nathaniel Brown enrolled in Medicare?

Yes. Nathaniel Brown 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 organization bills Medicare for Nathaniel Brown's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Brown reassigns Medicare benefits to St. Vincent Hospital (Santa Fe, NM). The 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 Nathaniel Brown's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nathaniel Brown affiliated with any hospitals?

According to CMS data, Nathaniel Brown is affiliated with Christus St Vincent Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Nathaniel Brown was last updated on November 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.