Doctor profile · Federal record

Dr. Sonja Krafcik, MD

Internal Medicine Physician (CMS: Internal Medicine) · Laguna Niguel, CA

  • NPI 1598767170
  • Accepts Medicare
  • 36 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
25500 Rancho Niguel RD, Suite 150
Laguna Niguel, CA 926777302
(949) 831-3686
fax (949) 831-3651

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
July 9, 2014
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #C51621

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598767170. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,096
Distinct HCPCS
10
Medicare allowed
$102,621
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 281 137 $139
99213 Established patient office or other outpatient visit, 20-29 minutes 241 157 $99
36415 Insertion of needle into vein for collection of blood sample 161 123 $8
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 138 138 $140
G0008 Administration of influenza virus vaccine 100 97 $33
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 94 91 $75
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 30 30 $16
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 20 20 $281
G0009 Administration of pneumococcal vaccine 20 20 $33
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment 11 11 $179

In context: peer comparison

Among 4 peers in Laguna Niguel Internal Medicine Physician, average services per provider: 75. This provider delivers 15× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,453
Patients
974
Total drug cost
$70,426
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 461 120 $10,308
Amlodipine Besylate Generic 451 124 $4,529
Atorvastatin Calcium Generic 420 116 $6,769
Rosuvastatin Calcium Generic 264 80 $10,270
Metoprolol Succinate Generic 242 60 $4,843
Losartan Potassium Generic 230 66 $4,436
Gabapentin Generic 187 51 $3,894
Escitalopram Oxalate Generic 185 58 $3,693
Duloxetine Hcl Generic 169 43 $5,369
Alendronate Sodium Generic 164 51 $1,888

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sonja Krafcik's medical specialty?
Dr. Sonja Krafcik practices Internal Medicine Physician in Laguna Niguel, CA.
Where does Dr. Sonja Krafcik practice?
Dr. Sonja Krafcik practices at 25500 Rancho Niguel RD, Laguna Niguel, CA 926777302. Office phone: 9498313686.
What is Dr. Sonja Krafcik's NPI?
Dr. Sonja Krafcik's National Provider Identifier (NPI) is 1598767170, issued by NPPES.
Does Dr. Sonja Krafcik accept Medicare assignment?
Yes. Dr. Sonja Krafcik accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sonja Krafcik commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.