Karen Jackson, MD
NPI 1285786087 · Family Medicine Physician · San Carlos, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Jackson, MD is a Family Medicine Physician provider in San Carlos, CA (NPI 1285786087).
Provider details
- NPI number
- 1285786087
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A67191 (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
19 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
158 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $154 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 38 | $156 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 | $110 |
Typical Medicare-allowed amounts for these services range $110–$156 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 136 | 38 |
| Levothyroxine Sodium | 60 | 14 |
| Lisinopril | 48 | 17 |
| Losartan Potassium | 27 | — |
| Omeprazole | 26 | — |
| Amlodipine Besylate | 25 | — |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-18
- Last updated
- 2020-05-28
- Certified
- 2020-05-28
Frequently asked questions
- What is Karen Jackson's NPI number?
- Karen Jackson's National Provider Identifier (NPI) is 1285786087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Jackson's specialty?
- Karen Jackson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Jackson located?
- Karen Jackson's practice location on file with NPPES is 301 Industrial Rd, San Carlos, CA 94070-2603.
- What is Karen Jackson's phone number?
- The practice phone number listed in the NPPES registry for Karen Jackson is (650) 596-4000.
- Does Karen Jackson accept Medicare?
- Karen Jackson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Jackson's NPI active?
- Yes — Karen Jackson's NPI (1285786087) is active in the NPPES registry as of the last update on 2020-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.