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

MICHAEL ANTHONY TIMONIAN MD
NPI 1285484832
Internal Medicine in Long Beach, CA

Active since March 26, 2024PECOS Enrolled
1050 LINDEN AVE, LONG BEACH, CA 90813(562) 491-9140(562) 491-9146 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 12, 2026, May 17, 2024 (2 updates tracked since 2024).

About Michael Anthony Timonian Md NPPES

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

MICHAEL ANTHONY TIMONIAN MD (NPI 1285484832) is an individual internal medicine provider in Long Beach, California, licensed in California (A211182) and active in the NPI registry since March 2024. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1285484832
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL ANTHONY TIMONIANCredential: MD
Location Address1050 LINDEN AVELong Beach, CA 90813-3321
Mailing Address1050 Linden AveLong Beach, CA 90813-3321 · (562) 491-9140 · Fax (562) 491-9146
Phone(562) 491-9140
Fax(562) 491-9146
Sole ProprietorNo
Enumeration DateMarch 26, 2024
Last NPPES UpdateAugust 12, 20262 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1285484832 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 · A211182
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.
1050 LINDEN AVE, Long Beach, CA 90813
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Anthony Timonian Md 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 90813 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.

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.

ARUN PANIKER DO
Student in an Organized Health Care Education/Training Program
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9140
DR. NEEL AMAR SHAH M.D.
Emergency Medicine
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9761
JI SUK KIM DO
Internal Medicine
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9140
OLAMIDE SONUGA
Student in an Organized Health Care Education/Training Program
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9140
CHANTELL STRONG
Hospitalist
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9000
KELLY WANG DO
Internal Medicine
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9140
CAOVINH T LE DO
Student in an Organized Health Care Education/Training Program
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9140
ANGELINE CHANG BARNES MD A MEDICAL CORPORATION
Anesthesiology
1050 LINDEN AVE
LONG BEACH, CA 90813
Los Angeles County (562) 491-9000

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 Michael Timonian's NPI number?

The NPI number for Michael Timonian is 1285484832. It was assigned to this individual provider in the NPPES registry on March 26, 2024.

Where is Michael Timonian located?

Michael Timonian practices at 1050 Linden Ave, Long Beach, CA 90813. The listed phone number is (562) 491-9140.

What is Michael Timonian's specialty?

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

Is Michael Timonian enrolled in Medicare?

Yes. Michael Timonian is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Michael Timonian was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.