Sonja Krafcik, MD
NPI 1598767170 · Internal Medicine Physician · Laguna Niguel, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonja Krafcik, MD is a Internal Medicine Physician provider in Laguna Niguel, CA (NPI 1598767170).
Provider details
- NPI number
- 1598767170
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- C51621 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
828 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 211 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 197 | $138 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 155 | $140 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 138 | $9 |
| Administration of Influenza Virus VaccineG0008 | 75 | $35 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 160 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 537 | 137 |
| Levothyroxine Sodium | 490 | 120 |
| Atorvastatin Calcium | 445 | 122 |
| Losartan Potassium | 321 | 88 |
| Rosuvastatin Calcium | 297 | 93 |
| Metoprolol Succinate | 274 | 63 |
| Duloxetine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-12
- Last updated
- 2014-07-09
Frequently asked questions
- What is Sonja Krafcik's NPI number?
- Sonja Krafcik's National Provider Identifier (NPI) is 1598767170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Krafcik's specialty?
- Sonja Krafcik is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sonja Krafcik located?
- Sonja Krafcik's practice location on file with NPPES is 25500 Rancho Niguel Rd, Laguna Niguel, CA 92677-7302.
- What is Sonja Krafcik's phone number?
- The practice phone number listed in the NPPES registry for Sonja Krafcik is (949) 831-3686.
- Does Sonja Krafcik accept Medicare?
- Sonja Krafcik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonja Krafcik's NPI active?
- Yes — Sonja Krafcik's NPI (1598767170) is active in the NPPES registry as of the last update on 2014-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.