Doctor profile · Federal record

Dr. Michael Guerena, MD

Specialist (CMS: Urology) · Oceanside, CA

  • NPI 1841222171
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 36 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3609 Vista Way
Oceanside, CA 920564522
(760) 637-2500
fax (760) 637-2501

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
May 1, 2017
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
174400000X — NUCC code
State license (1)
California #G80926
Medicaid
CA #00G809260

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841222171. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,996
Distinct HCPCS
10
Medicare allowed
$301,119
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 923 448 $97
99214 Established patient office or other outpatient visit, 30-39 minutes 636 360 $136
76856 Complete ultrasound scan of pelvis 335 273 $120
81000 Manual urinalysis test with examination using microscope, non-automated 309 200 $4
97750 Test or measurement for functional capacity, each 15 minutes 146 73 $31
76857 Limited ultrasound scan of pelvis 126 123 $54
52000 Diagnostic exam of bladder and urethra using an endoscope 99 79 $271
99203 New patient office or other outpatient visit, 30-44 minutes 97 97 $120
64566 Insertion of lower leg neurostimulator electrode 81 11 $133
96372 Injection of drug or substance under skin or into muscle 61 11 $15

In context: peer comparison

Among 6 peers in this city , average services per provider: 152. This provider delivers 20× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,350
Transactions
60
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Dendreon Pharmaceuticals LLC 7 $337.02
Janssen Biotech, Inc. 7 $252.34
ABBVIE INC. 12 $175.58
PROCEPT BioRobotics Corporation 4 $162.28
IMMUNITYBIO, INC. 3 $133.40
BIOTISSUE HOLDINGS INC. 1 $130.46
Sumitomo Pharma America, Inc. 6 $123.33
Olympus America Inc. 1 $116.24
Astellas Pharma US Inc 4 $94.96
Myriad Genetic Laboratories, Inc. 4 $92.03
Boston Scientific Corporation 2 $85.28
UROGEN PHARMA, INC. 2 $72.45
Teleflex LLC 2 $56.91
Bayer Healthcare Pharmaceuticals Inc. 3 $55.94
Blue Earth Diagnostics Limited 2 $54.17

By nature of payment

Food and Beverage
$2,332
Entertainment
$17

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,667
Patients
771
Total drug cost
$116,147
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 348 115 $7,129
Finasteride Generic 273 104 $5,792
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 180 112 $1,726
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 148 100 $841
Ciprofloxacin Hcl Generic 138 77 $961
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 100 56 $2,089
Myrbetriq (Mirabegron) Brand 67 26 $65,254
Estradiol Generic 61 32 $9,067
Tolterodine Tartrate Er (Tolterodine Tartrate) Brand 60 21 $8,726
Bicalutamide Generic 59 21 $2,065

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Guerena's medical specialty?
Dr. Michael Guerena practices Specialist in Oceanside, CA.
Where does Dr. Michael Guerena practice?
Dr. Michael Guerena practices at 3609 Vista Way, Oceanside, CA 920564522. Office phone: 7606372500.
What is Dr. Michael Guerena's NPI?
Dr. Michael Guerena's National Provider Identifier (NPI) is 1841222171, issued by NPPES.
Does Dr. Michael Guerena accept Medicare assignment?
Yes. Dr. Michael Guerena accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Guerena 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); Complete ultrasound scan of pelvis (HCPCS 76856). Source: CMS Medicare Physician & Other Practitioners file.