NPPES file of Aug 9, 2026

Masayuki Nigo, M.D.

Infectious Disease Physician · Houston, TX

Masayuki Nigo, M.D. is an infectious disease physician with a practice address in Houston, Texas, and NPI 1801109921, issued on Jul 18, 2010. Check the license (Texas Q6886, 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
1801109921
Name
Masayuki Nigo
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
Q6886 TX
Self-reported in NPPES; status is on the state search
Practice location
6431 Fannin St, Houston, TX 77030
Phone
(713) 500-6765
Enumerated
Jul 18, 2010
Record last updated
Mar 21, 2022
Medicare enrollment
Enrolled (PECOS I20160512001667); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 6431 Fannin St

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

  1. Ahmad AbdelhadiStudent in an Organized Health Care Education/Training Program1073453296
  2. Zayna AbdullaStudent in an Organized Health Care Education/Training Program1245030337
  3. Yaman Abdullah, M.D.Internal Medicine Physician1134461619
  4. Elizabeth Abels, MDStudent in an Organized Health Care Education/Training Program1417516881
  5. Jessica Abhulimhen, MDInternal Medicine Physician1639665136
  6. Andrew Abikhaled, MD CANDIDATEStudent in an Organized Health Care Education/Training Program1699574335

Verify Masayuki Nigo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q6886
    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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47% fewer Medicare Part D claims than the average infectious disease physician in 2024

366 Medicare Part D claims for 72 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Masayuki Nigo366
  2. Specialty average689

Most prescribed

  1. Biktarvy71 claims
  2. Cefepime Hcl26 claims
  3. Ertapenem25 claims
  4. Amoxicillin19 claims
  5. Azithromycin17 claims
  6. Rifabutin16 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: $37.69

2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Masayuki Nigo$37.69
  2. Specialty average$4,362.19

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

Bills Medicare through 2 group practices

  1. Houston Methodist Specialty PhysiciansHouston, TX
  2. Tmh Physician Associates PLLCSugar Land, TX

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

Masayuki Nigo among 674 infectious disease physician records in Texas

Masayuki Nigo, M.D. is one of 674 infectious disease physician records with a practice address in Texas. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 65% of them.

  • NPI issued2010 · 65% of these records are older, 31% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2005 · median 2002 among the 510 with a school on file
  • Record last updated2022 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Texas

There are 674 infectious disease physician records in Texas.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Lisa Armitige, M.D.Houston, TX 770301568480820
  2. Ben Barnett, M.D.Houston, TX 770301457379687
  3. Tanvir Bell, M.D.Houston, TX 770301720012644
  4. Victor Fainstein, MDHouston, TX 770301912985664
  5. Richard Harris, M.D.Houston, TX 770301851373039
  6. Rodrigo Hasbun, M.D., M.P.H.Houston, TX 770301659334100
  7. Jiejian Lin, M.D.Houston, TX 770301679533533
  8. Cezarina Mindru, MDHouston, TX 770301497780787

Common questions

What is Masayuki Nigo, M.D.'s NPI number?

Masayuki Nigo, M.D.'s National Provider Identifier (NPI) is 1801109921, issued on Jul 18, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Masayuki Nigo, M.D. located?

The NPPES record lists a practice address at 6431 Fannin St, Houston, TX, 77030. Phone: (713) 500-6765. Providers update this record themselves, so call before visiting.

How can I verify Masayuki Nigo, M.D.'s license?

NPPES lists Texas license number Q6886, 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 Masayuki Nigo, M.D. prescribe under Medicare Part D?

In 2024, Masayuki Nigo, M.D. had 366 Medicare Part D claims for 72 beneficiaries; the average among infectious disease physician prescribers was 689. 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.