NPPES file of Aug 9, 2026

Nathaniel H. Loo, M.D.

Anesthesiology Physician · McKinney, TX

Nathaniel H. Loo, M.D. is an anesthesiology physician with a practice address in McKinney, Texas, and NPI 1861791329, issued on Mar 23, 2011. Check the license (Texas Q3040, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861791329
Name
Nathaniel H. Loo
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
Q3040 TX
CDR.0002531 CO
MC-138 GU
Self-reported in NPPES; status is on the state search
Practice location
4510 Medical Center Dr Ste 211, McKinney, TX 75069
Phone
(469) 541-1600
Enumerated
Mar 23, 2011
Record last updated
Sep 28, 2023
Fax
(469) 541-1612
Medicare enrollment
Enrolled (PECOS I20160630002017); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest anesthesiology physician records → All 4,635 in Texas → Look up another NPI →

Also registered at 4510 Medical Center Dr Ste 211

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sherrin Alexander, CRNACertified Registered Nurse Anesthetist1558816686
  2. Rajvinder Baidwan, MDAnesthesiology Physician1740449941
  3. Priscilla Bardwell, CRNACertified Registered Nurse Anesthetist1376520635
  4. Blake Bauman, DNP, CRNACertified Registered Nurse Anesthetist1871001727
  5. Leslie Bell, CRNACertified Registered Nurse Anesthetist1578598819
  6. Martin BeversAnesthesiology Physician1154902898

Verify Nathaniel H. Loo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q3040    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Allen Anesthesia AssociatesAllen, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nathaniel H. Loo among 4,635 anesthesiology physician records in Texas

Nathaniel H. Loo, M.D. is one of 4,635 anesthesiology physician records with a practice address in Texas. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 70% of them.

  • NPI issued2011 · 70% of these records are older, 27% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2011 · median 2005 among the 3,293 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in Texas

There are 4,635 anesthesiology physician records in Texas.

All 4,635 in Texas → Every provider in McKinney → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Rajvinder Baidwan, MDMcKinney, TX 750691740449941
  2. Priscilla Clark, M.D.McKinney, TX 750691073871901
  3. Neal Dandona, M.D.McKinney, TX 750691487874152
  4. David Faulkner, MDMcKinney, TX 750691407173958
  5. Eric Havemann, MDMcKinney, TX 750691811188097
  6. Vamseen Jetti, M.D.McKinney, TX 750691275713059
  7. Jimmy Le, M.D.McKinney, TX 750691174840961
  8. Gregg Lessly, MDMcKinney, TX 750691003842907

Common questions

What is Nathaniel H. Loo, M.D.'s NPI number?

Nathaniel H. Loo, M.D.'s National Provider Identifier (NPI) is 1861791329, issued on Mar 23, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel H. Loo, M.D. located?

The NPPES record lists a practice address at 4510 Medical Center Dr Ste 211, McKinney, TX, 75069. Phone: (469) 541-1600. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel H. Loo, M.D.'s license?

NPPES lists Texas license number Q3040, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.