Robert Berkowitz, M.D.
NPI 1538183504 · Psychiatry Physician · Natick, MA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Berkowitz, M.D. is a Psychiatry Physician provider in Natick, MA (NPI 1538183504).
Provider details
- NPI number
- 1538183504
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 70371 (MA)
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
1,030 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 412 | $97 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 263 | $74 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 229 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 126 | $133 |
Typical Medicare-allowed amounts for these services range $74–$133 (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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lorazepam | 53 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 49 |
| Clozapine | 43 |
| Trazodone Hcl | 35 |
| Lamotrigine | 33 |
| Zolpidem Tartratebrand: Zolpidem Tartrate Er | 30 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphet Er | 24 |
| Escitalopram Oxalate | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Berkowitz's NPI number?
- Robert Berkowitz's National Provider Identifier (NPI) is 1538183504, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Berkowitz's specialty?
- Robert Berkowitz is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Berkowitz located?
- Robert Berkowitz's practice location on file with NPPES is 67 Union St, Natick, MA 01760-7700.
- What is Robert Berkowitz's phone number?
- The practice phone number listed in the NPPES registry for Robert Berkowitz is (508) 651-1041.
- Does Robert Berkowitz accept Medicare?
- Robert Berkowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Berkowitz's NPI active?
- Yes — Robert Berkowitz's NPI (1538183504) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.