1. Home
  2. Directory
  3. California
  4. Livermore
  5. Internal Medicine
  6. NPI Profile

DR. IRENE C. RADEMAKER M.D.
NPI 1932286929
Internal Medicine in Livermore, CA

Active since November 01, 2006PECOS Enrolled
4951 ARROYO RD, LIVERMORE, CA 94550(925) 373-4700 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Irene C. Rademaker M.d. NPPES

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

DR. IRENE C. RADEMAKER M.D. (NPI 1932286929) is an individual internal medicine provider in Livermore, California, licensed in California (GO79553) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932286929
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. IRENE C. RADEMAKERCredential: M.D.
Location Address4951 ARROYO RDLivermore, CA 94550-9650
Mailing Address4951 Arroyo RdLivermore, CA 94550-9650 · (925) 373-4700
Phone(925) 373-4700
Sole ProprietorNo
Enumeration DateNovember 1, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1932286929 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · GO79553
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
4951 ARROYO RD, Livermore, CA 94550
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Irene C. Rademaker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94550 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.

MRS. INSUK S. DURHAM R.D
Dietitian, Registered
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
CHERYL JOY BOWERS RN, CNS
Clinical Nurse Specialist
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
DR. DEEPALI DHRUVE PHD
Psychologist (Clinical)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
PALO ALTO VAMC
General Acute Care Hospital
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (702) 341-3020
MR. PAULEY MARCELIN RN
Registered Nurse (Case Management)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
KENNETH DAVID RANDALL MPT. GCS. ATC
Physical Therapist
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
HOLLAND CHASMA JORDAN LMSW, MSW
Social Worker (Clinical)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700
MRS. LINDA T SHIRAISHI RN, FNP, CWON
Registered Nurse (Wound Care)
4951 ARROYO RD
LIVERMORE, CA 94550
Alameda County (925) 373-4700

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 Irene Rademaker's NPI number?

The NPI number for Irene Rademaker is 1932286929. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Irene Rademaker located?

Irene Rademaker practices at 4951 Arroyo Rd, Livermore, CA 94550. The listed phone number is (925) 373-4700.

What is Irene Rademaker's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Irene Rademaker enrolled in Medicare?

Yes. Irene Rademaker is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Irene Rademaker was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.