Jennifer Nizen, MD
NPI 1689604746 · Internal Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Nizen, MD is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1689604746).
Provider details
- NPI number
- 1689604746
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD046562L (PA)
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
1,238 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) |
|---|---|---|
| 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 | 294 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 223 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 213 | $49 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 153 | $74 |
| Hemoglobin A1c Level83036 | 134 | $10 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 99 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 389 | 119 |
| Rosuvastatin Calcium | 363 | 108 |
| Atorvastatin Calcium | 345 | 105 |
| Levothyroxine Sodium | 207 | 59 |
| Losartan Potassium | 196 | 54 |
| Hydrochlorothiazide | 163 | 49 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-04
- Last updated
- 2012-11-01
Frequently asked questions
- What is Jennifer Nizen's NPI number?
- Jennifer Nizen's National Provider Identifier (NPI) is 1689604746, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Nizen's specialty?
- Jennifer Nizen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Nizen located?
- Jennifer Nizen's practice location on file with NPPES is 601 Walnut St, Philadelphia, PA 19106.
- What is Jennifer Nizen's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Nizen is (215) 829-0101.
- Does Jennifer Nizen accept Medicare?
- Jennifer Nizen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Nizen's NPI active?
- Yes — Jennifer Nizen's NPI (1689604746) is active in the NPPES registry as of the last update on 2012-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.