Marcella Katsnelson, D.O.
NPI 1942663158 · Hospitalist Physician · Hackensack, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcella Katsnelson, D.O. is a Hospitalist Physician provider in Hackensack, NJ (NPI 1942663158).
Provider details
- NPI number
- 1942663158
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 25MB10526400 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
214 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 90 | $84 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 77 | $127 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 27 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 20 | $185 |
Typical Medicare-allowed amounts for these services range $84–$185 (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.
Practice location
Mailing address
Additional practice locations (2)
- 200 W Arbor DrSan Diego, CA 92103-9000Phone: (800) 926-8273
- 2150 Pennsylvania Ave NwThe Gw Medical Faculty AssociatesWashington, DC 20037-3201Phone: (202) 741-3000
Registry dates
- Enumerated
- 2016-04-04
- Last updated
- 2023-02-13
- Certified
- 2023-02-13
Frequently asked questions
- What is Marcella Katsnelson's NPI number?
- Marcella Katsnelson's National Provider Identifier (NPI) is 1942663158, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcella Katsnelson's specialty?
- Marcella Katsnelson is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Marcella Katsnelson located?
- Marcella Katsnelson's practice location on file with NPPES is 30 Prospect Ave, Hackensack, NJ 07601-1915.
- What is Marcella Katsnelson's phone number?
- The practice phone number listed in the NPPES registry for Marcella Katsnelson is (551) 996-1548.
- Does Marcella Katsnelson accept Medicare?
- Marcella Katsnelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcella Katsnelson's NPI active?
- Yes — Marcella Katsnelson's NPI (1942663158) is active in the NPPES registry as of the last update on 2023-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.