Doctor profile · Federal record

Dr. Shannon Walsh, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Pediatrics Physician · San Diego, CA

  • NPI 1558472779
  • Accepts Medicare
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
200 W Arbor Dr
San Diego, CA 921039000
(800) 926-8273
fax (888) 539-8781
Mailing address
File 57326
Los Angeles, CA 900747326

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
December 21, 2023
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #20A8617

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558472779. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
250
Distinct HCPCS
8
Medicare allowed
$26,074
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 63 37 $97
99214 Established patient office or other outpatient visit, 30-39 minutes 52 30 $137
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 34 34 $138
99442 Telephone medical discussion with physician, 11-20 minutes 28 18 $86
99215 Established patient office or other outpatient visit, 40-54 minutes 23 15 $191
81003 Automated urinalysis test 19 18 $2
99441 Telephone medical discussion with physician, 5-10 minutes 19 13 $47
G0008 Administration of influenza virus vaccine 12 11 $33

In context: peer comparison

Among 193 peers in this city , average services per provider: 141. This provider delivers 1.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$32
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 1 $32.35

By nature of payment

Food and Beverage
$32

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
386
Patients
50
Total drug cost
$6,830
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 73 17 $1,370
Rosuvastatin Calcium Generic 66 22 $1,195
Atorvastatin Calcium Generic 35 11 $433
Amlodipine Besylate Generic 34 0 $355
Metoprolol Succinate Generic 26 0 $670
Gabapentin Generic 22 0 $102
Lisinopril Generic 19 0 $327
Omeprazole Generic 19 0 $296
Hydrochlorothiazide Generic 16 0 $150
Bupropion Xl (Bupropion Hcl) Brand 14 0 $801

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Shannon Walsh's medical specialty?
Dr. Shannon Walsh practices Internal Medicine Physician in San Diego, CA.
Where does Dr. Shannon Walsh practice?
Dr. Shannon Walsh practices at 200 W Arbor Dr, San Diego, CA 921039000. Office phone: 8009268273.
What is Dr. Shannon Walsh's NPI?
Dr. Shannon Walsh's National Provider Identifier (NPI) is 1558472779, issued by NPPES.
Does Dr. Shannon Walsh accept Medicare assignment?
Yes. Dr. Shannon Walsh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shannon Walsh commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.