Karen Song, MD
NPI 1356632947 · Obstetrics & Gynecology Physician · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Song, MD is a Obstetrics & Gynecology Physician provider in San Luis Obispo, CA (NPI 1356632947).
Provider details
- NPI number
- 1356632947
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2014020947 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
241 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 | 135 | $99 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 41 | $120 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 22 | $138 |
| Fitting and Insertion of Vaginal Support Device57160 | 15 | $81 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 15 | $43 |
| Biopsy of Lining of Uterus58100 | 13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 117 | 58 |
| Estradiolbrand: Yuvafem | 39 | 11 |
| Progesterone, Micronizedbrand: Progesterone | 37 | — |
| Valacyclovir Hclbrand: Valacyclovir | 20 | — |
| Estradiolbrand: Estradiol (twice Weekly) | 16 | — |
| Medroxyprogesterone Acetate | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (4)
- 220 S Palisade Dr Ste 203Santa Maria, CA 93454Phone: (805) 354-7101
- 350 Posada Ln Ste 202Templeton, CA 93465-4060Phone: (805) 434-5497Fax: (805) 434-0917
- 2305 South 65 Highway, Building aMarshall, MO 65340-3702Phone: (660) 886-6677Fax: (660) 831-3346
- 2305 South 65 Highway, Building aMarshall, MO 65340-3702Phone: (660) 886-6677Fax: (660) 831-3346
Registry dates
- Enumerated
- 2011-04-29
- Last updated
- 2024-12-24
- Certified
- 2024-12-24
Frequently asked questions
- What is Karen Song's NPI number?
- Karen Song's National Provider Identifier (NPI) is 1356632947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Song's specialty?
- Karen Song is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Song located?
- Karen Song's practice location on file with NPPES is 1941 Johnson Ave Ste 301, San Luis Obispo, CA 93401-4175.
- What is Karen Song's phone number?
- The practice phone number listed in the NPPES registry for Karen Song is (805) 786-4111.
- Does Karen Song accept Medicare?
- Karen Song is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Song's NPI active?
- Yes — Karen Song's NPI (1356632947) is active in the NPPES registry as of the last update on 2024-12-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.