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TANUJ SIDHARTHA MD
NPI 1568666741
Psychiatry & Neurology - Psychiatry in Vallejo, CA

Active since June 12, 2007PECOS EnrolledAccepts Medicare Assignment
91.04/100
CMS Quality Rating
532 OREGON ST STE 8, VALLEJO, CA 94590(707) 554-1146(707) 554-4300 Get Directions Write a Review

NPPES record last updated: December 21, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Tanuj Sidhartha Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TANUJ SIDHARTHA MD (NPI 1568666741) is an individual psychiatry provider in Vallejo, California, licensed in California (A102349) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1568666741
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameTANUJ SIDHARTHACredential: MD
Location Address532 OREGON ST STE 8Vallejo, CA 94590-3254
Mailing Address2081 Arena Blvd, 160Sacramento, CA 95834-2309 · (916) 285-8977 · Fax (916) 285-0338
Phone(707) 554-1146
Fax(707) 554-4300
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateJune 12, 2007
Last NPPES UpdateDecember 21, 2009
✔ NPI 1568666741 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A102349
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
532 OREGON ST STE 8, Vallejo, CA 94590
Open in Google Maps ↗

Other Identifiers 2

Medicare PINBE591Z
OtherBP1-0018066Institutional Permit

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Tanuj Sidhartha Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1658434808
PECOS Enrollment IDI20090114000185
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Tanuj Sidhartha reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America - Psychiatry PC
14 mi
Psychiatry
4080 PORT CHICAGO HWY
Concord, CA 94520
  • Reassigned Medicare billing, California enrollment
  • 208 clinicians in this Medicare group
NPI 1669977682 (925) 674-4200
Alameda Health System
22 mi
Surgery
1411 E 31ST STREET
Oakland, CA 94602
  • Reassigned Medicare billing, California enrollment
  • 900 clinicians in this Medicare group
NPI 1740332931 (510) 437-4800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
154 services42 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
49 services20 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
29 services29 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94590 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$191.95 typical visit price
range $65.02 – $191.95
Typical copayment $47.98 (range $16.25 – $47.98)
Most-billed visit code 99205
Established Patient
$80.24 typical visit price
range $21.86 – $157.69
Typical copayment $20.06 (range $5.46 – $39.42)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.13
Promoting Interoperability100
Improvement Activities40
Cost64.1

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Tanuj Sidhartha's NPI number?

The NPI number for Tanuj Sidhartha is 1568666741. It was assigned to this individual provider in the NPPES registry on June 12, 2007.

Where is Tanuj Sidhartha located?

Tanuj Sidhartha practices at 532 Oregon St Ste 8, Vallejo, CA 94590. The listed phone number is (707) 554-1146.

What is Tanuj Sidhartha's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Tanuj Sidhartha enrolled in Medicare?

Yes. Tanuj Sidhartha is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Tanuj Sidhartha's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tanuj Sidhartha reassigns Medicare benefits to 2 organizations: Cep America - Psychiatry PC (Concord, CA) and Alameda Health System (Oakland, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tanuj Sidhartha's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Tanuj Sidhartha was last updated on December 21, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.