NPPES file of Aug 9, 2026

California Routh Do, M.D.

Emergency Medical Services (Emergency Medicine) Physician · Cypress, TX

California Routh Do, M.D. is an emergency medical services (emergency medicine) physician with a practice address in Cypress, Texas, and NPI 1366488298, issued on Jun 20, 2006. Check the license (Texas M1638, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366488298
Name
California Routh Do
Credential
M.D.
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
M1638 TX
Self-reported in NPPES; status is on the state search
Practice location
21214 Northwest Fwy, Cypress, TX 77429
Phone
(832) 912-3800
Enumerated
Jun 20, 2006
Record last updated
Aug 27, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050907000559); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 2002
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 emergency medical services (emergency medicine) physician records → All 250 in Texas → Look up another NPI →

Also registered at 21214 Northwest Fwy

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

  1. Mir Ali, MDFamily Medicine Physician1063853257
  2. Muhammad Ali, MDAnatomic Pathology & Clinical Pathology Physician1699270702
  3. Robert Allen, MDDiagnostic Radiology Physician1881675585
  4. Mohammad Alobaidi, MDDiagnostic Radiology Physician1174532832
  5. Kelly Armstrong, APRN-CNPAcute Care Nurse Practitioner1053996488
  6. Daniel Backlas, MDDiagnostic Radiology Physician1013021336

Verify California Routh Do in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license M1638    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

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44% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024

164 Medicare Part D claims for 111 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D.

  1. California Do164
  2. Specialty average292

Most prescribed

  1. Azithromycin23 claims
  2. Ondansetron Odt19 claims
  3. Cefdinir11 claims
  4. Prednisone11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. Integrative Emergency Services Physician Group-Houston PLLCRichmond, TX
  2. Round Table Physicians Group PLLCHouston, TX

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

California Routh Do among 250 emergency medical services (emergency medicine) physician records in Texas

California Routh Do, M.D. is one of 250 emergency medical services (emergency medicine) physician records with a practice address in Texas. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 22% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated2002 · median 1999 among the 62 with a school on file
  • Record last updated2007 · 76% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medical Services (Emergency Medicine) Physician providers in Texas

There are 250 emergency medical services (emergency medicine) physician records in Texas.

All 250 in Texas → Every provider in Cypress → Emergency Medical Services (Emergency Medicine) Physician nationwide →

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Scott Frankel, MDBellaire, TX 774011588135024
  2. Shawn Baichoo, M.D.Sugar Land, TX 774791922008101
  3. James Ferguson, M.D.Sugar Land, TX 774791750373304
  4. Amanda Nylund, M.D.Sugar Land, TX 774791053303511
  5. Gregory Starr, M.D.Sugar Land, TX 774791861492886
  6. David Gerber, MDTomball, TX 773751528095478
  7. Gopalasamy Durairaj, M.D.Katy, TX 774941841282548
  8. Tommy Maoz, MDKaty, TX 774941629022892

Common questions

What is California Routh Do, M.D.'s NPI number?

California Routh Do, M.D.'s National Provider Identifier (NPI) is 1366488298, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is California Routh Do, M.D. located?

The NPPES record lists a practice address at 21214 Northwest Fwy, Cypress, TX, 77429. Phone: (832) 912-3800. Providers update this record themselves, so call before visiting.

How can I verify California Routh Do, M.D.'s license?

NPPES lists Texas license number M1638, 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.

How much does California Routh Do, M.D. prescribe under Medicare Part D?

In 2024, California Routh Do, M.D. had 164 Medicare Part D claims for 111 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. Part D covers Medicare prescriptions only.

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.