Zamir Nestelbaum, MD
NPI 1518971399 · Psychiatry Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zamir Nestelbaum, MD is a Psychiatry Physician provider in Worcester, MA (NPI 1518971399).
Provider details
- NPI number
- 1518971399
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 59160 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
411 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 | 208 | $130 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 153 | $72 |
| Psychotherapy With Evaluation and Management Visit, 1 Hour90838 | 50 | $121 |
Typical Medicare-allowed amounts for these services range $72–$130 (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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 153 | 25 |
| Alprazolam | 87 | 12 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 84 | 12 |
| Bupropion Hclbrand: Bupropion Xl | 69 | 14 |
| Lamotrigine | 69 | — |
| Trazodone Hcl | 64 | — |
| Escitalopram Oxalate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2013-12-06
Frequently asked questions
- What is Zamir Nestelbaum's NPI number?
- Zamir Nestelbaum's National Provider Identifier (NPI) is 1518971399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zamir Nestelbaum's specialty?
- Zamir Nestelbaum is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Zamir Nestelbaum located?
- Zamir Nestelbaum's practice location on file with NPPES is 338 Highland St, Worcester, MA 01602-2143.
- What is Zamir Nestelbaum's phone number?
- The practice phone number listed in the NPPES registry for Zamir Nestelbaum is (508) 752-5880.
- Does Zamir Nestelbaum accept Medicare?
- Zamir Nestelbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zamir Nestelbaum's NPI active?
- Yes — Zamir Nestelbaum's NPI (1518971399) is active in the NPPES registry as of the last update on 2013-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.