Boris Zhalkovsky, MD
NPI 1518146489 · Psychiatry Physician · Castro Valley, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Boris Zhalkovsky, MD is a Psychiatry Physician provider in Castro Valley, CA (NPI 1518146489).
Provider details
- NPI number
- 1518146489
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A56375 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
199 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 78 | $98 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 77 | $81 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 44 | $246 |
Typical Medicare-allowed amounts for these services range $81–$246 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Olanzapine | 50 | — |
| Trazodone Hcl | 43 | 12 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 21 | — |
| Aripiprazole | 21 | — |
| Mirtazapine | 16 | — |
| Duloxetine Hcl | 15 | — |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$138 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-29
- Last updated
- 2007-10-29
Frequently asked questions
- What is Boris Zhalkovsky's NPI number?
- Boris Zhalkovsky's National Provider Identifier (NPI) is 1518146489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Boris Zhalkovsky's specialty?
- Boris Zhalkovsky is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Boris Zhalkovsky located?
- Boris Zhalkovsky's practice location on file with NPPES is 20081 Lake Chabot Road, Castro Valley, CA 94564-5303.
- What is Boris Zhalkovsky's phone number?
- The practice phone number listed in the NPPES registry for Boris Zhalkovsky is (510) 690-1155.
- Does Boris Zhalkovsky accept Medicare?
- Boris Zhalkovsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Boris Zhalkovsky's NPI active?
- Yes — Boris Zhalkovsky's NPI (1518146489) is active in the NPPES registry as of the last update on 2007-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.