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KEN MURAKAMI STERN M.D.
NPI 1427476514
Internal Medicine - Pulmonary Disease in Oakland, CA

Active since April 04, 2014PECOS EnrolledAccepts Medicare Assignment
3300 WEBSTER ST STE 1000, OAKLAND, CA 94609(510) 271-4400(844) 852-1277 Get Directions Write a Review

NPPES record last updated: November 20, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 20, 2021, Oct 26, 2020, Aug 28, 2018 (3 updates tracked since 2018).

About Ken Murakami Stern M.d. NPPES

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

KEN MURAKAMI STERN M.D. (NPI 1427476514) is an individual pulmonary disease provider in Oakland, California, licensed in California (A137706) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of Northwestern University Feinberg Medical School (2014).

NPPES Registry Identity

NPI1427476514
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameKEN MURAKAMI STERNCredential: M.D.
Location Address3300 WEBSTER ST STE 1000Oakland, CA 94609-3125
Mailing Address3300 Webster St Ste 1000Oakland, CA 94609-3125 · (510) 271-4400 · Fax (844) 852-1277
Phone(510) 271-4400
Fax(844) 852-1277
Sole ProprietorNo
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 2014
Enumeration DateApril 4, 2014
Last NPPES UpdateNovember 20, 20213 updates tracked since enumeration
NPPES CertifiedNovember 20, 2021
✔ NPI 1427476514 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in CA · A137706
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A137706 (CA)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License A137706 (CA)
3300 WEBSTER ST STE 1000, Oakland, CA 94609
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Other Identifiers 1

MedicaidKS3232267556CA

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

Ken Murakami Stern 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 ID4284999681
PECOS Enrollment IDI20180808000734
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

3

Medicare enrollment records show Ken Stern reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hill Health Inc A Medical Corporation
Same address
General Practice
3300 WEBSTER ST
Oakland, CA 94609
  • Reassigned Medicare billing, California enrollment
  • 17 clinicians in this Medicare group
NPI 1245607456 (925) 327-6964
Uc Regents
371 mi
Allergy & Immunology
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 525 clinicians in this Medicare group
NPI 1003864174 (714) 456-8068
Inpatient Specialists Of California, PC
378 mi
Internal Medicine
2101 N WATERMAN AVE
San Bernardino, CA 92404
  • Reassigned Medicare billing, California enrollment
  • 1,216 clinicians in this Medicare group
NPI 1952792475 (615) 377-5658

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 10

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.
364 services192 patients
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.
123 services80 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
29 services25 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
26 services23 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.
22 services22 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
18 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94609 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
2 suppliers12 claims12 services$22.53 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers12 claims12 services$55.15 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

JUSTIN P DUMOUCHEL M.D.
Internal Medicine (Pulmonary Disease)
3300 WEBSTER ST STE 1000
OAKLAND, CA 94609
Alameda County (510) 271-4400

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 Ken Stern's NPI number?

The NPI number for Ken Stern is 1427476514. It was assigned to this individual provider in the NPPES registry on April 4, 2014.

Where is Ken Stern located?

Ken Stern practices at 3300 Webster St Ste 1000, Oakland, CA 94609. The listed phone number is (510) 271-4400.

What is Ken Stern's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Ken Stern enrolled in Medicare?

Yes. Ken Stern 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 Ken Stern's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ken Stern reassigns Medicare benefits to 3 organizations: Hill Health Inc A Medical Corporation (Oakland, CA), Uc Regents (Orange, CA) and Inpatient Specialists Of California, PC (San Bernardino, 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 Ken Stern'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 Ken Stern was last updated on November 20, 2021. 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.