Doctor profile · Federal record

Dr. Larry Marshall, MD

Family Medicine Physician (CMS: Family Practice) · Family Medicine Physician · Lakeside, CA

  • NPI 1114018132
  • Accepts Medicare
  • 41 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
12517 Lakeshore Dr
Lakeside, CA 920403103
(619) 443-3843
fax (619) 390-1810
Additional location
170 S Green Valley Pkwy Ste 300
Henderson, NV 890123145
(702) 791-1294
fax (702) 850-2820

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
December 16, 2020
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State licenses (2)
California #A52344 · Nevada #16913
Medicaid
CA #00A523440

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1114018132. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
827
Distinct HCPCS
10
Medicare allowed
$80,210
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 498 203 $97
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 117 23 $82
99442 Telephone medical discussion with physician, 11-20 minutes 41 32 $97
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 35 27 $179
99238 Hospital discharge day management, 30 minutes or less 31 25 $84
99203 New patient office or other outpatient visit, 30-44 minutes 22 22 $120
99214 Established patient office or other outpatient visit, 30-39 minutes 20 19 $137
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 20 20 $138
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 16 15 $16
99212 Established patient office or other outpatient visit, 10-19 minutes 15 12 $61

In context: peer comparison

Among 1 peers in Lakeside Family Medicine Physician, average services per provider: 75. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$302
Transactions
15
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Lilly USA, LLC 4 $85.78
Boston Scientific Corporation 2 $46.22
Pfizer INC. 2 $38.73
AstraZeneca Pharmaceuticals Lp 2 $38.21
Novo Nordisk INC 2 $36.47
Kowa Pharmaceuticals America, INC. 2 $35.77
Edwards Lifesciences Corporation 1 $20.94

By nature of payment

Food and Beverage
$302

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,300
Patients
915
Total drug cost
$45,548
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 453 120 $6,484
Hydrochlorothiazide Generic 315 91 $1,136
Lisinopril Generic 290 70 $2,852
Levothyroxine Sodium Generic 289 79 $5,566
Amlodipine Besylate Generic 278 74 $2,105
Metformin Hcl Generic 253 57 $2,652
Meloxicam Generic 231 82 $1,001
Pantoprazole Sodium Generic 221 63 $4,168
Gabapentin Generic 184 60 $5,562
Alprazolam Generic 154 33 $331

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Larry Marshall's medical specialty?
Dr. Larry Marshall practices Family Medicine Physician in Lakeside, CA.
Where does Dr. Larry Marshall practice?
Dr. Larry Marshall practices at 12517 Lakeshore Dr, Lakeside, CA 920403103. Office phone: 6194433843.
What is Dr. Larry Marshall's NPI?
Dr. Larry Marshall's National Provider Identifier (NPI) is 1114018132, issued by NPPES.
Does Dr. Larry Marshall accept Medicare assignment?
Yes. Dr. Larry Marshall accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Larry Marshall commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.