Karen Williams, M.D.
NPI 1710911391 · Family Medicine Physician · Califon, NJ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Williams, M.D. is a Family Medicine Physician provider in Califon, NJ (NPI 1710911391).
Provider details
- NPI number
- 1710911391
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 25MA08800700 (NJ)
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
831 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 | 296 | $102 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 212 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 110 | $84 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 102 | $25 |
| Administration of Influenza Virus VaccineG0008 | 29 | $36 |
| 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 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 246 | 76 |
| Rosuvastatin Calcium | 180 | 64 |
| Lisinopril | 165 | 51 |
| Levothyroxine Sodium | 152 | 42 |
| Amlodipine Besylate | 128 | 41 |
| Metformin Hcl | 77 | 23 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2020-08-29
- Certified
- 2020-08-29
Frequently asked questions
- What is Karen Williams's NPI number?
- Karen Williams's National Provider Identifier (NPI) is 1710911391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Williams's specialty?
- Karen Williams is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Williams located?
- Karen Williams's practice location on file with NPPES is 384 County Road 513, Califon, NJ 07830-4158.
- What is Karen Williams's phone number?
- The practice phone number listed in the NPPES registry for Karen Williams is (908) 832-2125.
- Does Karen Williams accept Medicare?
- Karen Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Williams's NPI active?
- Yes — Karen Williams's NPI (1710911391) is active in the NPPES registry as of the last update on 2020-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.