Doctor profile · Federal record

Dr. Mai Ngan Lai, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Palm Springs, CA

  • NPI 1477959583
  • Accepts Medicare
  • MIPS 79.9 / 100 · 2023
  • 17 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1150 N Indian Canyon Dr
Palm Springs, CA 922624872
(347) 237-1546

Credentials & registration

NPPES · NUCC
NPI registered
November 2014 — 12 yrs on file
Profile last updated
October 4, 2017
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #138564

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1477959583. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,330
Distinct HCPCS
7
Medicare allowed
$132,088
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 744 227 $82
99239 Hospital discharge day management, more than 30 minutes 216 208 $119
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 138 42 $123
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 122 122 $134
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 47 12 $51
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 46 45 $180
99238 Hospital discharge day management, 30 minutes or less 17 17 $84

In context: peer comparison

Among 20 peers in Palm Springs Internal Medicine Physician, average services per provider: 304. This provider delivers 4.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$54
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 1 $34.56
Janssen Pharmaceuticals, INC 1 $19.46

By nature of payment

Food and Beverage
$54

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
35
Patients
23
Total drug cost
$643
Drug Type Claims Patients Total cost
Rosuvastatin Calcium Generic 12 12 $482
Tamsulosin Hcl Generic 12 0 $80
Pantoprazole Sodium Generic 11 11 $81

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mai Ngan Lai's medical specialty?
Dr. Mai Ngan Lai practices Internal Medicine Physician in Palm Springs, CA.
Where does Dr. Mai Ngan Lai practice?
Dr. Mai Ngan Lai practices at 1150 N Indian Canyon Dr, Palm Springs, CA 922624872. Office phone: 3472371546.
What is Dr. Mai Ngan Lai's NPI?
Dr. Mai Ngan Lai's National Provider Identifier (NPI) is 1477959583, issued by NPPES.
Does Dr. Mai Ngan Lai accept Medicare assignment?
Yes. Dr. Mai Ngan Lai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mai Ngan Lai commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.