Doctor profile · Federal record

Dr. Immanuel Asuncion, M.D.

Family Medicine Physician (CMS: Family Practice) · San Pablo, CA

  • NPI 1245254580
  • Accepts Medicare
  • 23 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2101 Vale RD Ste 201
San Pablo, CA 94806
(510) 233-9140
fax (510) 233-9142
Additional location
2970 Hilltop Mall RD, Suite 304
Richmond, CA 948061947
(510) 204-8090
fax (510) 243-1665
Mailing address
1450 Treat Blvd # 300
Walnut Creek, CA 945972168

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
March 11, 2019
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #A89792

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245254580. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
626
Distinct HCPCS
10
Medicare allowed
$57,121
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 284 127 $103
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 81 81 $46
99213 Established patient office or other outpatient visit, 20-29 minutes 53 45 $81
G0008 Administration of influenza virus vaccine 37 37 $36
99215 Established patient office or other outpatient visit, 40-54 minutes 35 27 $119
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 34 34 $75
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 28 28 $281
G0009 Administration of pneumococcal vaccine 28 28 $36
99443 Telephone medical discussion with physician, 21-30 minutes 19 16 $99
99442 Telephone medical discussion with physician, 11-20 minutes 15 14 $74

In context: peer comparison

Among 2 peers in San Pablo Family Medicine Physician, average services per provider: 49. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$909
Transactions
40
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 12 $286.68
Edwards Lifesciences Corporation 6 $130.06
Lilly USA, LLC 4 $83.47
Philips North America LLC 2 $74.68
Bayer Healthcare Pharmaceuticals INC. 4 $73.58
Amgen INC. 2 $56.86
Esperion Therapeutics, INC. 2 $51.31
Novo Nordisk INC 3 $48.83
Janssen Pharmaceuticals, INC 2 $35.85
Actelion Pharmaceuticals US, INC. 1 $26.25
Exact Sciences Corporation 1 $23.71
Merck Sharp & Dohme LLC 1 $17.65

By nature of payment

Food and Beverage
$909

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,827
Patients
893
Total drug cost
$39,880
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 648 205 $8,808
Lisinopril Generic 278 91 $1,820
Metformin Hcl Generic 276 80 $2,499
Losartan Potassium Generic 234 65 $3,667
Levothyroxine Sodium Generic 183 45 $3,536
Rosuvastatin Calcium Generic 178 56 $2,764
Amlodipine Besylate Generic 171 53 $949
Tamsulosin Hcl Generic 166 52 $4,386
Pantoprazole Sodium Generic 133 52 $2,076
Ezetimibe Generic 109 33 $2,811

Frequently asked questions

Auto-generated from federal data
What is Dr. Immanuel Asuncion's medical specialty?
Dr. Immanuel Asuncion practices Family Medicine Physician in San Pablo, CA.
Where does Dr. Immanuel Asuncion practice?
Dr. Immanuel Asuncion practices at 2101 Vale RD Ste 201, San Pablo, CA 94806. Office phone: 5102339140.
What is Dr. Immanuel Asuncion's NPI?
Dr. Immanuel Asuncion's National Provider Identifier (NPI) is 1245254580, issued by NPPES.
Does Dr. Immanuel Asuncion accept Medicare assignment?
Yes. Dr. Immanuel Asuncion accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Immanuel Asuncion commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.