Doctor profile · Federal record

Dr. Nathan Nielsen, M.D.

Critical Care Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Critical Care Medicine (Internal Medicine) Physician · Critical Care Medicine (Internal Medicine) Physician · Albuquerque, NM

  • NPI 1780869743
  • Accepts Medicare
  • MIPS 81.4 / 100 · 2023
  • 22 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Msc10-5550 1 University of New Mexico
Albuquerque, NM 87131
(505) 272-4751
Mailing address
800 Bradbury Dr Se Ste 116
Albuquerque, NM 871064310

Credentials & registration

NPPES · NUCC
NPI registered
January 2008 — 18 yrs on file
Profile last updated
September 26, 2024
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207RC0200X — NUCC code
State licenses (3)
New Mexico #MD2019-0746 · Maryland #D78283 · Louisiana #MD.203214
Medicaid (2)
LA #1803375 · MD #931106800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780869743. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
67
Distinct HCPCS
2
Medicare allowed
$11,415
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 50 24 $212
86077 Blood bank physician services for cross match and/or evaluation and written report 17 11 $48

In context: peer comparison

Among 6 peers in Albuquerque Critical Care Medicine (Internal Medicine) Physician, average services per provider: 36. This provider delivers 1.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$587
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Grifols Shared Services North America, INC. 1 $506.95
Genentech USA, INC. 1 $80.29

By nature of payment

Honoraria
$507
Food and Beverage
$80

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathan Nielsen's medical specialty?
Dr. Nathan Nielsen practices Critical Care Medicine (Internal Medicine) Physician in Albuquerque, NM.
Where does Dr. Nathan Nielsen practice?
Dr. Nathan Nielsen practices at Msc10-5550 1 University of New Mexico, Albuquerque, NM 87131. Office phone: 5052724751.
What is Dr. Nathan Nielsen's NPI?
Dr. Nathan Nielsen's National Provider Identifier (NPI) is 1780869743, issued by NPPES.
Does Dr. Nathan Nielsen accept Medicare assignment?
Yes. Dr. Nathan Nielsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathan Nielsen commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Blood bank physician services for cross match and/or evaluation and written report (HCPCS 86077). Source: CMS Medicare Physician & Other Practitioners file.