Doctor profile · Federal record

Dr. Calvin Ly, DO

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Hercules, CA

  • NPI 1376761767
  • Accepts Medicare
  • MIPS 10.9 / 100 · 2023
  • 21 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
600 Alfred Nobel Dr Ste A
Hercules, CA 945471834
(510) 984-1103
Mailing address
250 Point Lobos Ave Apt 603
San Francisco, CA 941211402

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
June 25, 2021
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
California #20A 10209 · Ohio #58001776

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376761767. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,540
Distinct HCPCS
4
Medicare allowed
$452,306
HCPCS Description Services Patients Avg allowed
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 3,084 315 $123
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 163 133 $176
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 159 155 $207
99497 Advance care planning, first 30 minutes 134 130 $85

In context: peer comparison

Among 1 peers in Hercules Emergency Medicine Physician, average services per provider: 885. This provider delivers 4.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,638
Patients
596
Total drug cost
$173,235
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 620 88 $10,084
Amlodipine Besylate Generic 474 68 $4,272
Metformin Hcl Generic 365 39 $3,967
Levothyroxine Sodium Generic 362 35 $3,678
Divalproex Sodium Generic 356 42 $19,715
Gabapentin Generic 344 49 $7,237
Mirtazapine Generic 318 44 $5,683
Olanzapine Generic 272 35 $9,804
Tamsulosin Hcl Generic 257 32 $8,639
Furosemide Generic 246 38 $1,577

Frequently asked questions

Auto-generated from federal data
What is Dr. Calvin Ly's medical specialty?
Dr. Calvin Ly practices Emergency Medicine Physician in Hercules, CA.
Where does Dr. Calvin Ly practice?
Dr. Calvin Ly practices at 600 Alfred Nobel Dr Ste A, Hercules, CA 945471834. Office phone: 5109841103.
What is Dr. Calvin Ly's NPI?
Dr. Calvin Ly's National Provider Identifier (NPI) is 1376761767, issued by NPPES.
Does Dr. Calvin Ly accept Medicare assignment?
Yes. Dr. Calvin Ly accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Calvin Ly commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with high level of medical decision making (HCPCS 99310); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.