NPPES file of Aug 9, 2026

Ronald Wanki Ngwa Ambe, M.D.

Colon & Rectal Surgery Physician · Houston, TX

Ronald Wanki Ngwa Ambe, M.D. is a colon & rectal surgery physician with a practice address in Houston, Texas, and NPI 1063688711, issued on May 2, 2008. Check the license (Texas P6323, 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
1063688711
Name
Ronald Wanki Ngwa Ambe
Credential
M.D.
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License number
P6323 TX
Self-reported in NPPES; status is on the state search
Practice location
1324 N Shepherd Dr Ste 100, Houston, TX 77008
Phone
(832) 232-0500
Enumerated
May 2, 2008
Record last updated
Jun 25, 2025
Medicaid ID
1022138700001 PA
Medicare enrollment
Enrolled (PECOS I20140619000389); accepts Medicare assignment
Medical or professional school
Howard University College Of Medicine, 2003
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.
Download card Updates feed

Verify Ronald Wanki Ngwa Ambe in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P6323
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

36% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024

123 Medicare Part D claims for 74 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. 23 claims were for opioids.

  1. Ronald Ambe123
  2. Specialty average192

Most prescribed

  1. Ibuprofen16 claims
  2. Methylprednisolone13 claims
  3. Hydrocodone-Acetaminophen11 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.

Industry payments in 2024: $27.88

1 payment: food and beverage; the largest payer was Tela Bio, Inc. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ronald Ambe$27.88
  2. Specialty average$3,468.16

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Concord Medical Group OF Texas PLLCPalacios, TX

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

Ronald Wanki Ngwa Ambe among 209 colon & rectal surgery physician records in Texas

Ronald Wanki Ngwa Ambe, M.D. is one of 209 colon & rectal surgery physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 57% of them.

  • NPI issued2008 · 57% of these records are older, 35% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 84% of these records are
  • Graduated2003 · median 2004 among the 174 with a school on file
  • Record last updated2025 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Colon & Rectal Surgery Physician providers in Texas

There are 209 colon & rectal surgery physician records in Texas.

The 8 colon & rectal surgery physician records with the nearest ZIP codes

  1. Joseph Cali, M.D.Houston, TX 770241871504225
  2. Omar Madriz, M.D.Houston, TX 770241598871204
  3. H Bailey, M.D.Houston, TX 770301386631505
  4. George Chang, M.D.Houston, TX 770301295820496
  5. Marianne Cusick, MD, MSPHHouston, TX 770301033323878
  6. Kelly Gilmore, MDHouston, TX 770301962697417
  7. Eric Haas, M.D.Houston, TX 770301275501603
  8. Atif Iqbal, MDHouston, TX 770301841398138

Common questions

What is Ronald Wanki Ngwa Ambe, M.D.'s NPI number?

Ronald Wanki Ngwa Ambe, M.D.'s National Provider Identifier (NPI) is 1063688711, issued on May 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Ronald Wanki Ngwa Ambe, M.D. located?

The NPPES record lists a practice address at 1324 N Shepherd Dr Ste 100, Houston, TX, 77008. Phone: (832) 232-0500. Providers update this record themselves, so call before visiting.

How can I verify Ronald Wanki Ngwa Ambe, M.D.'s license?

NPPES lists Texas license number P6323, 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 Ronald Wanki Ngwa Ambe, M.D. prescribe under Medicare Part D?

In 2024, Ronald Wanki Ngwa Ambe, M.D. had 123 Medicare Part D claims for 74 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.

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.