Doctor profile · Federal record

Dr. Vannarith So, MD, MPH

Internal Medicine Physician (CMS: Internal Medicine) · Long Beach, CA

  • NPI 1659416584
  • Accepts Medicare
  • 25 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1777 N Bellflower Blvd, Suite 101
Long Beach, CA 908154013
(562) 986-6138
fax (562) 986-6382

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
January 9, 2020
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A85885

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659416584. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
6,262
Distinct HCPCS
10
Medicare allowed
$646,938
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,705 418 $134
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 1,668 242 $83
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 676 102 $79
99307 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 330 58 $42
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 201 149 $182
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 188 126 $125
99239 Hospital discharge day management, more than 30 minutes 182 131 $121
G0008 Administration of influenza virus vaccine 145 143 $33
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 123 111 $16
90662 Influenza vaccine split virus, preservative free 118 118 $72

In context: peer comparison

Among 40 peers in Long Beach Internal Medicine Physician, average services per provider: 124. This provider delivers 51× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$38
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Otsuka America Pharmaceutical, INC. 1 $22.02
Teva Pharmaceuticals USA, INC. 1 $16.35

By nature of payment

Food and Beverage
$38

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
6,266
Patients
1,512
Total drug cost
$308,960
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,154 302 $18,916
Amlodipine Besylate Generic 672 170 $8,575
Pantoprazole Sodium Generic 470 121 $7,980
Losartan Potassium Generic 444 117 $8,022
Lisinopril Generic 423 82 $4,585
Metformin Hcl Generic 418 92 $5,514
Gabapentin Generic 391 111 $8,852
Levothyroxine Sodium Generic 374 95 $7,814
Eliquis (Apixaban) Brand 353 63 $219,591
Tamsulosin Hcl Generic 332 72 $5,672

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Vannarith So's medical specialty?
Dr. Vannarith So practices Internal Medicine Physician in Long Beach, CA.
Where does Dr. Vannarith So practice?
Dr. Vannarith So practices at 1777 N Bellflower Blvd, Long Beach, CA 908154013. Office phone: 5629866138.
What is Dr. Vannarith So's NPI?
Dr. Vannarith So's National Provider Identifier (NPI) is 1659416584, issued by NPPES.
Does Dr. Vannarith So accept Medicare assignment?
Yes. Dr. Vannarith So accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Vannarith So commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308). Source: CMS Medicare Physician & Other Practitioners file.