● Active Type 1 · Individual

DR. Nathaniel H. Loo, M.D.

Anesthesiology·McKinney, TX· NPI 1861791329 · Enumerated 2011 · 15 years on NPI

Loo is 1 of 32 anesthesiology providers in McKinney and 1 of 6023 in Texas.

NPI age

15 years

Enumerated 2011-03-23

Primary specialty

Anesthesiology

Plus 3 subspecialties

Licensed in

TX, CO, GU

3 states

Status

Active

No deactivations on record

Last NPPES update

2023-09-28

Source: monthly bulk 2026-05

Sole proprietor

Yes

Solo practice on file

How this provider compares

Across 6023 active anesthesiology providers in Texas.

NPI age

15 years

↓ 3 yr below median (18 yr)

State licenses

3 states

Top 87% — 12% of peers are multi-state

Subspecialties

In the 31% of peers with subspecialties

NPI lifetime · 2011 → 2026

2011-03Enumerated in NPPES

2011 2026

Where they practice

Practice location

4510 Medical Center Dr Ste 211

McKinney, TX 750691602

📞 4695411600fax 4695411612

Mailing address

906 W McDermott Dr # 116-371

Allen, TX 750136510

📞 4695411600fax 4695411601

Additional practice locations

2 secondary locations on file with NPPES.

Location 2

5323 Harry Hines Blvd

Dallas, TX 753907201

📞 2146487837

Location 3

10350 E Dakota Ave

Denver, CO 802471314

📞 3033384545

Specialties

Allopathic & Osteopathic Physicians › Anesthesiology

Anesthesiology Primary

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...

TX license #Q3040CO license #CDR.0002531GU license #MC-138 taxonomy 207L00000X
Anesthesiology

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs...

TX license #Q3040 taxonomy 207LP2900X

Practice context

Part of a multi-provider practice. 35 other active providers share this practice address in NPPES.

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How to verify this provider

Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
Check the state license is currently active.State licensing boards publish current status; NPPES does not.
Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.