Doctor profile · Federal record

Dr. Nathaniel Loo, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Anesthesiology Physician · Pain Medicine (Anesthesiology) Physician · McKinney, TX

  • NPI 1861791329
  • Accepts Medicare
  • 15 yrs in practice
  • Licensed in 3 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
4510 Medical Center Dr Ste 211
McKinney, TX 750691602
(469) 541-1600
fax (469) 541-1612
Additional location
5323 Harry Hines Blvd
Dallas, TX 753907201
(214) 648-7837
Additional location
10350 E Dakota Ave
Denver, CO 802471314
(303) 338-4545
Mailing address
906 W McDermott Dr # 116-371
Allen, TX 750136510

Credentials & registration

NPPES · NUCC
NPI registered
March 2011 — 15 yrs on file
Profile last updated
September 28, 2023
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207L00000X — NUCC code
State licenses (3)
Texas #Q3040 · Colorado #CDR.0002531 · Guam #MC-138

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1861791329. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
115
Distinct HCPCS
7
Medicare allowed
$17,996
HCPCS Description Services Patients Avg allowed
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 28 27 $74
00811 Anesthesia for other procedure on large bowel using an endoscope 18 18 $87
01992 Anesthesia for nerve block and injection procedure, prone position 16 16 $86
01214 Anesthesia for total hip replacement 15 15 $242
64415 Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 14 14 $67
00670 Anesthesia for extensive surgery on spine 12 11 $530
01844 Anesthesia for placement or revision of blood flow shunt 12 12 $170

In context: peer comparison

Among 6 peers in this city , average services per provider: 16. This provider delivers 7.2× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nathaniel Loo's medical specialty?
Dr. Nathaniel Loo practices Anesthesiology Physician in McKinney, TX.
Where does Dr. Nathaniel Loo practice?
Dr. Nathaniel Loo practices at 4510 Medical Center Dr Ste 211, McKinney, TX 750691602. Office phone: 4695411600.
What is Dr. Nathaniel Loo's NPI?
Dr. Nathaniel Loo's National Provider Identifier (NPI) is 1861791329, issued by NPPES.
Does Dr. Nathaniel Loo accept Medicare assignment?
Yes. Dr. Nathaniel Loo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathaniel Loo commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for nerve block and injection procedure, prone position (HCPCS 01992). Source: CMS Medicare Physician & Other Practitioners file.