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AMINU M BIRHAN M.D.
NPI 1659507788
Internal Medicine in Lancaster, CA

Active since June 03, 2009PECOS EnrolledAccepts Medicare Assignment
LANCASTER KAISER PERMANENTE FACILITY, 43112 N 15TH STREET WEST, LANCASTER, CA 93534(661) 726-2226 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 6, 2026, Nov 29, 2021 (2 updates tracked since 2021).

About Aminu M Birhan M.d. NPPES

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

AMINU M BIRHAN M.D. (NPI 1659507788) is an individual internal medicine provider in Lancaster, California, licensed in California (A94185) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, maintains a secondary practice location in Seattle, and is a graduate of Other (1992).

NPPES Registry Identity

NPI1659507788
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameAMINU M BIRHANCredential: M.D.
Location AddressLANCASTER KAISER PERMANENTE FACILITY, 43112 N 15TH STREET WESTLancaster, CA 93534
Mailing Address43112 15th St WLancaster, CA 93534-6219
Phone(661) 726-2226
Sole ProprietorYes
Medical School CMSOtherGraduated 1992
Enumeration DateJune 3, 2009
Last NPPES UpdateJanuary 6, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2026
✔ NPI 1659507788 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · A94185✔ Licensed in WA · MD70065298
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.
LANCASTER KAISER PERMANENTE FACILITY, Lancaster, CA 93534
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Secondary Practice Location 1

Location 1201 16th Ave ESeattle, WA 98112-5226 · Phone (206) 326-3000 · Fax (877) 515-2975

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

Aminu M Birhan 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 ID2668528571
PECOS Enrollment IDI20090917000616
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 Aminu Birhan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
2.2 mi
Health Maintenance Organization
43112 N 15TH ST
Lancaster, CA 93534
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1982863783 (661) 726-2279
Kaiser Foundation Health Plan Of Washington
906 mi
Multi-Specialty
2715 NACHES AVE SW # GSWA1N02
Renton, WA 98057
  • Reassigned Medicare billing, Washington enrollment
  • 2,678 clinicians in this Medicare group
NPI 1124264577 (509) 241-7349
Hawaii Permanente Medical Group Inc
2,577 mi
Health Maintenance Organization
3288 MOANALUA RD
Honolulu, HI 96819
  • Reassigned Medicare billing, Hawaii enrollment
  • 1,187 clinicians in this Medicare group
NPI 1710945969 (808) 432-0000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93534 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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 Aminu Birhan's NPI number?

The NPI number for Aminu Birhan is 1659507788. It was assigned to this individual provider in the NPPES registry on June 3, 2009.

Where is Aminu Birhan located?

Aminu Birhan practices at Lancaster Kaiser Permanente Facility 43112 N 15th Street West, Lancaster, CA 93534. The listed phone number is (661) 726-2226.

What is Aminu Birhan's specialty?

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

Is Aminu Birhan enrolled in Medicare?

Yes. Aminu Birhan 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 Aminu Birhan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aminu Birhan reassigns Medicare benefits to 3 organizations: Southern California Permanente Medical Group (Lancaster, CA), Kaiser Foundation Health Plan Of Washington (Renton, WA) and Hawaii Permanente Medical Group Inc (Honolulu, HI). 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 Aminu Birhan'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 Aminu Birhan was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.