Isabel Allen-Steinfeld, MD
NPI 1457398661 · Psychiatry Physician · Newark, NJ
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabel Allen-Steinfeld, MD is a Psychiatry Physician provider in Newark, NJ (NPI 1457398661).
Provider details
- NPI number
- 1457398661
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA07753200 (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
108 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 Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 96 | $52 |
| Psychiatric Diagnostic Evaluation90791 | 12 | $156 |
Typical Medicare-allowed amounts for these services range $52–$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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Divalproex Sodium | 95 | 17 |
| Benztropine Mesylate | 67 | 18 |
| Haloperidol | 51 | 12 |
| Clozapine | 47 | 11 |
| Olanzapine | 39 | 17 |
| Risperidone | 36 | — |
| Oxcarbazepine | 35 | — |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 27 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-31
- Last updated
- 2016-05-10
Frequently asked questions
- What is Isabel Allen-Steinfeld's NPI number?
- Isabel Allen-Steinfeld's National Provider Identifier (NPI) is 1457398661, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Allen-Steinfeld's specialty?
- Isabel Allen-Steinfeld is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Isabel Allen-Steinfeld located?
- Isabel Allen-Steinfeld's practice location on file with NPPES is 183 South Orange Ave, Newark, NJ 07103.
- What is Isabel Allen-Steinfeld's phone number?
- The practice phone number listed in the NPPES registry for Isabel Allen-Steinfeld is (973) 972-5430.
- Does Isabel Allen-Steinfeld accept Medicare?
- Isabel Allen-Steinfeld is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabel Allen-Steinfeld's NPI active?
- Yes — Isabel Allen-Steinfeld's NPI (1457398661) is active in the NPPES registry as of the last update on 2016-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.