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CHRISTOPHER ADAM WALKER MD
NPI 1649469701
Emergency Medicine in Oakland, CA

Active since October 15, 2007PECOS EnrolledAccepts Medicare Assignment
3625 BRUNELL DR, OAKLAND, CA 94602(216) 513-5788 Get Directions Write a Review

NPPES record last updated: June 23, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Christopher Adam Walker Md NPPES

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

CHRISTOPHER ADAM WALKER MD (NPI 1649469701) is an individual emergency medicine provider in Oakland, California, licensed in California (A106362) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2007).

NPPES Registry Identity

NPI1649469701
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameCHRISTOPHER ADAM WALKERCredential: MD
Location Address3625 BRUNELL DROakland, CA 94602-4108
Mailing Address3625 Brunell DrOakland, CA 94602-4108 · (216) 513-5788
Phone(216) 513-5788
Sole ProprietorNo
Medical School CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 2007
Enumeration DateOctober 15, 2007
Last NPPES UpdateJune 23, 2022
NPPES CertifiedJune 23, 2022
✔ NPI 1649469701 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A106362
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
3625 BRUNELL DR, Oakland, CA 94602
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher Adam Walker 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 ID446431571
PECOS Enrollment IDI20110223000458
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.

Areas of Expertise CMS Part B claims 2

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
27 services14 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.
22 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94602 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Christopher Walker's NPI number?

The NPI number for Christopher Walker is 1649469701. It was assigned to this individual provider in the NPPES registry on October 15, 2007.

Where is Christopher Walker located?

Christopher Walker practices at 3625 Brunell Dr, Oakland, CA 94602. The listed phone number is (216) 513-5788.

What is Christopher Walker's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Christopher Walker enrolled in Medicare?

Yes. Christopher Walker 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.

When was this NPI record last updated?

The NPPES record for Christopher Walker was last updated on June 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.