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DR. MERRICK BRADLEY TAN MD
NPI 1154825156
Anesthesiology in Oakland, CA

Active since March 23, 2018PECOS EnrolledAccepts Medicare Assignment
3600 BROADWAY, OAKLAND, CA 94611(510) 406-3759 Get Directions Write a Review

NPPES record last updated: October 14, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 14, 2023, Mar 23, 2018 (2 updates tracked since 2018).

About Dr. Merrick Bradley Tan Md NPPES

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

DR. MERRICK BRADLEY TAN MD (NPI 1154825156) is an individual anesthesiology provider in Oakland, California, licensed in California (A165891) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2018).

NPPES Registry Identity

NPI1154825156
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. MERRICK BRADLEY TANCredential: MD
Location Address3600 BROADWAYOakland, CA 94611-5730
Mailing Address3138 Chimney CtUnion City, CA 94587-1650 · (510) 717-3489
Phone(510) 406-3759
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 2018
Enumeration DateMarch 23, 2018
Last NPPES UpdateOctober 14, 20232 updates tracked since enumeration
NPPES CertifiedOctober 14, 2023
✔ NPI 1154825156 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A165891
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
3600 BROADWAY, Oakland, CA 94611
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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

Dr. Merrick Bradley Tan 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 ID5395196257
PECOS Enrollment IDI20240104004881
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 Reassignment

Medicare enrollment records show Merrick Tan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
9.7 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555

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

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

OSAMA MOHAMED EL-SAYED MD, PHD
Internal Medicine
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-1000
TRAM KHUONG
Pharmacist
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-4200
CHRISTIAN F. SCHMUTZ MD
Psychiatry & Neurology (Psychiatry)
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-1000
CHRISTOPHER AARON HUDSON RT
Respiratory Therapist, Registered
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-8886
DR. TAYLOR RENEE JOHNSON MD, MPH
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-1000
ADAM BUIE
Pharmacist
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-1000
DR. JUSTIN B FONG MD
Student in an Organized Health Care Education/Training Program
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-1000
JASMINE THAI LU MD
Student in an Organized Health Care Education/Training Program
3600 BROADWAY
OAKLAND, CA 94611
Alameda County (510) 752-1000

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 Merrick Tan's NPI number?

The NPI number for Merrick Tan is 1154825156. It was assigned to this individual provider in the NPPES registry on March 23, 2018.

Where is Merrick Tan located?

Merrick Tan practices at 3600 Broadway, Oakland, CA 94611. The listed phone number is (510) 406-3759.

What is Merrick Tan's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Merrick Tan enrolled in Medicare?

Yes. Merrick Tan 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 organization bills Medicare for Merrick Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Merrick Tan reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, CA). The 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 Merrick Tan'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 Merrick Tan was last updated on October 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.