Karen Hart, M.D.
NPI 1679539332 · Internal Medicine Physician · Ho Ho Kus, NJ
Karen Hart, M.D. is a Internal Medicine Physician provider in Ho Ho Kus, NJ (NPI 1679539332).
Provider details
- NPI number
- 1679539332
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MA070920 (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
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
4,080 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,078 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 670 | $147 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 525 | $152 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 422 | $18 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 316 | $104 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 102 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,168 | 330 |
| Rosuvastatin Calcium | 392 | 131 |
| Levothyroxine Sodium | 371 | 101 |
| Losartan Potassium | 348 | 104 |
| Amlodipine Besylate | 290 | 89 |
| Lisinopril | 184 | 53 |
| Olmesartan Medoxomil |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-21
- Last updated
- 2025-10-13
- Certified
- 2025-10-13
Frequently asked questions
- What is Karen Hart's NPI number?
- Karen Hart's National Provider Identifier (NPI) is 1679539332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Hart's specialty?
- Karen Hart is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Hart located?
- Karen Hart's practice location on file with NPPES is 619 N Maple Ave, Ho Ho Kus, NJ 07423-1683.
- What is Karen Hart's phone number?
- The practice phone number listed in the NPPES registry for Karen Hart is (551) 284-6544.
- Is Karen Hart's NPI active?
- Yes — Karen Hart's NPI (1679539332) is active in the NPPES registry as of the last update on 2025-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.