Uday Mukherjee, MD
NPI 1659457075 · Psychiatry Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Uday Mukherjee, MD is a Psychiatry Physician provider in Walnut Creek, CA (NPI 1659457075).
Provider details
- NPI number
- 1659457075
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A081816 (CA)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,403 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 615 | $151 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 614 | $80 |
| Psychiatric Services Complicated By Communication Factor90785 | 86 | $17 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 46 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 42 | $188 |
Typical Medicare-allowed amounts for these services range $17–$188 (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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 155 | 38 |
| Trazodone Hcl | 144 | 31 |
| Mirtazapine | 141 | 32 |
| Escitalopram Oxalate | 137 | 28 |
| Quetiapine Fumarate | 94 | 15 |
| Bupropion Hclbrand: Bupropion Hcl Sr | 92 | 17 |
| Buspirone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,718 across 95 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
Additional practice locations (1)
- 1501 Claus RdModesto, CA 95355-9711Phone: (209) 558-4700
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2020-05-06
- Certified
- 2020-05-06
Frequently asked questions
- What is Uday Mukherjee's NPI number?
- Uday Mukherjee's National Provider Identifier (NPI) is 1659457075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Uday Mukherjee's specialty?
- Uday Mukherjee is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Uday Mukherjee located?
- Uday Mukherjee's practice location on file with NPPES is 3100 Oak Rd Ste 270, Walnut Creek, CA 94597-2078.
- What is Uday Mukherjee's phone number?
- The practice phone number listed in the NPPES registry for Uday Mukherjee is (925) 944-9711.
- Does Uday Mukherjee accept Medicare?
- Uday Mukherjee is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Uday Mukherjee's NPI active?
- Yes — Uday Mukherjee's NPI (1659457075) is active in the NPPES registry as of the last update on 2020-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.