Doctor profile · Federal record

Dr. Masayuki Nigo, M.D.

Infectious Disease Physician (CMS: Infectious Disease) · Internal Medicine Physician · Houston, TX

  • NPI 1801109921
  • Accepts Medicare
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6431 Fannin St, Msb 2.112
Houston, TX 770301501
(713) 500-6765

Credentials & registration

NPPES · NUCC
NPI registered
July 2010 — 16 yrs on file
Profile last updated
March 21, 2022
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207RI0200X — NUCC code
State license (1)
Texas #Q6886

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801109921. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,013
Distinct HCPCS
6
Medicare allowed
$98,226
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 758 161 $81
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 74 63 $132
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 64 32 $122
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 58 57 $178
99214 Established patient office or other outpatient visit, 30-39 minutes 34 21 $131
99215 Established patient office or other outpatient visit, 40-54 minutes 25 16 $184

In context: peer comparison

Among 56 peers in Houston Infectious Disease Physician, average services per provider: 191. This provider delivers 5.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$38
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 1 $20.06
Abbvie INC. 1 $17.63

By nature of payment

Food and Beverage
$38

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
169
Patients
17
Total drug cost
$362,986
Drug Type Claims Patients Total cost
Biktarvy (Bictegrav/Emtricit/Tenofov Ala) Brand 73 17 $298,148
Daptomycin Generic 20 0 $22,812
Ertapenem (Ertapenem Sodium) Brand 15 0 $10,451
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 13 0 $61
Valganciclovir Hcl Generic 13 0 $2,148
Voriconazole Generic 13 0 $3,585
Minocycline Hcl Generic 11 0 $1,195
Tivicay (Dolutegravir Sodium) Brand 11 0 $24,585

Frequently asked questions

Auto-generated from federal data
What is Dr. Masayuki Nigo's medical specialty?
Dr. Masayuki Nigo practices Infectious Disease Physician in Houston, TX.
Where does Dr. Masayuki Nigo practice?
Dr. Masayuki Nigo practices at 6431 Fannin St, Houston, TX 770301501. Office phone: 7135006765.
What is Dr. Masayuki Nigo's NPI?
Dr. Masayuki Nigo's National Provider Identifier (NPI) is 1801109921, issued by NPPES.
Does Dr. Masayuki Nigo accept Medicare assignment?
Yes. Dr. Masayuki Nigo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Masayuki Nigo commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.