Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JASON WYETH KOOB M.D.
NPI 1093943821
Emergency Medicine in San Ramon, CA

Q: What is Jason Koob's NPI number?

The NPI number for Jason Koob is 1093943821. It was assigned to this individual provider in the NPPES registry on July 1, 2009.

Q: What is Jason Koob's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Jason Koob was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.

Active since July 01, 2009PECOS EnrolledAccepts Medicare Assignment

6001 NORRIS CANYON RD, SAN RAMON, CA 94583(925) 275-9200(925) 308-8944 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2026, Jan 21, 2016 (2 updates tracked since 2016).

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About Dr. Jason Wyeth Koob M.d. NPPES

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

DR. JASON WYETH KOOB M.D. (NPI 1093943821) is an individual emergency medicine provider in San Ramon, California, licensed in California (A128794) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS and is a graduate of University Of Chicago, Pritzker School Of Medicine (2009).

NPPES Registry Identity

NPI1093943821

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. JASON WYETH KOOBCredential: M.D.

Location Address6001 NORRIS CANYON RDSan Ramon, CA 94583-5400

Mailing Address3494 Camino Tassajara # 1010Danville, CA 94506-4680 · (925) 275-9200 · Fax (925) 308-8944

Phone(925) 275-9200

Fax(925) 308-8944

Sole ProprietorYes

Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 2009

Enumeration DateJuly 1, 2009

Last NPPES UpdateOctober 6, 20262 updates tracked since enumeration

NPPES CertifiedOctober 6, 2026

✔ NPI 1093943821 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 · A128794

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.

6001 NORRIS CANYON RD, San Ramon, CA 94583

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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. Jason Wyeth Koob M.d. 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 ID3274855317

PECOS Enrollment IDI20141201001318

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 Jason Koob reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Team Physicians Of Northern California Medical Group Inc

6.3 mi

Emergency Medicine

5000 HOPYARD RD, SUITE 100
Pleasanton, CA 94588

Reassigned Medicare billing, California enrollment
202 clinicians in this Medicare group

NPI 1649692716 (925) 924-1600

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

221 services209 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

88 services87 patients

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 services26 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94583 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.

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.

EMMA WINFIELD N.P

Nurse Practitioner (Family)