JOHN Y. KIM MD
NPI 1124107883
Hospitalist in Walnut Creek, CA

Active since November 03, 2006PECOS EnrolledAccepts Medicare Assignment
1425 S MAIN ST, WALNUT CREEK, CA 94596(925) 295-4000 Get Directions Write a Review

NPPES record last updated: December 27, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About John Y. Kim Md NPPES

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

JOHN Y. KIM MD (NPI 1124107883) is an individual hospitalist provider in Walnut Creek, California, licensed in California (A83968) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of New York Medical College (1999).

NPPES Registry Identity

NPI1124107883
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameJOHN Y. KIMCredential: MD
Location Address1425 S MAIN STWalnut Creek, CA 94596-5318
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Sole ProprietorNo
Medical School CMSNew York Medical CollegeGraduated 1999
Enumeration DateNovember 3, 2006
Last NPPES UpdateDecember 27, 2021
NPI 1124107883 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in CA · A83968
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
1425 S MAIN ST, Walnut Creek, CA 94596

Other Identifiers 1

Medicaid00A839680CA

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

John Y. Kim 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 ID547166209
PECOS Enrollment IDI20031211000953
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

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 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.
33 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94596 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
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.

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.

Emergency Medicine
1425 S MAIN ST, EMERGENCY MEDICINE DEPARTMENT
WALNUT CREEK, CA 94596
Hospitalist
1425 S MAIN ST, KAISER PERMANENTE WALNUT CREEK ATTN: HBS DEPT
WALNUT CREEK, CA 94596
Obstetrics & Gynecology
1425 S MAIN ST
WALNUT CREEK, CA 94596
General Acute Care Hospital
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Anesthetist, Certified Registered
1425 S MAIN ST
WALNUT CREEK, CA 94596
Surgery (Vascular Surgery)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Social Worker (Clinical)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Psychiatry & Neurology (Neurology)
1425 S MAIN ST
WALNUT CREEK, CA 94596

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 John Kim's NPI number?

The NPI number for John Kim is 1124107883. It was assigned to this individual provider in the NPPES registry on November 3, 2006.

Where is John Kim located?

John Kim practices at 1425 S Main St, Walnut Creek, CA 94596. The listed phone number is (925) 295-4000.

What is John Kim's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is John Kim enrolled in Medicare?

Yes. John Kim 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 John Kim was last updated on December 27, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.