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MICHAEL BENJAMIN OLALIA M.D.
NPI 1477086320
Internal Medicine in Union City, CA

Active since April 07, 2017PECOS EnrolledAccepts Medicare Assignment
3553 WHIPPLE RD BLDG B3, UNION CITY, CA 94587(510) 602-5034 Get Directions Write a Review

NPPES record last updated: October 10, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 10, 2022, Aug 4, 2020 (2 updates tracked since 2020).

About Michael Benjamin Olalia M.d. NPPES

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

MICHAEL BENJAMIN OLALIA M.D. (NPI 1477086320) is an individual internal medicine provider in Union City, California, licensed in California (A167397) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Vacaville, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1477086320
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL BENJAMIN OLALIACredential: M.D.
Location Address3553 WHIPPLE RD BLDG B3Union City, CA 94587-1507
Mailing Address3553 Whipple Rd Bldg B3Union City, CA 94587-1507 · (510) 329-5423
Phone(510) 602-5034
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 7, 2017
Last NPPES UpdateOctober 10, 20222 updates tracked since enumeration
NPPES CertifiedOctober 10, 2022
✔ NPI 1477086320 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A167397
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3553 WHIPPLE RD BLDG B3, Union City, CA 94587
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Secondary Practice Location 1

Location 1770 Mason StVacaville, CA 95688-4646 · Phone (707) 427-4900

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

Michael Benjamin Olalia 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 ID8729403977
PECOS Enrollment IDI20200804003364
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 Michael Olalia reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
11 mi
Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1639252604 (650) 299-2000

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 94587 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 8

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
16 suppliers52 claims93 services$6.23 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
11 suppliers24 claims24 services$0.95 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
3 suppliers23 claims23 services$50.01 avg. paid by Medicare
Hospital bed, heavy duty, extra wide, with weight capacity greater than 350 pounds, but less than or equal to 600 pounds, with any type side rails, with mattress E0303
DME-Hospital Beds · category DB000N
2 suppliers16 claims16 services$97.55 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$21.95 avg. paid by Medicare
Patient lift, electric with seat or sling E0635
DME-Other DME · category DE000N
2 suppliers12 claims12 services$74.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Olalia's NPI number?

The NPI number for Michael Olalia is 1477086320. It was assigned to this individual provider in the NPPES registry on April 7, 2017.

Where is Michael Olalia located?

Michael Olalia practices at 3553 Whipple Rd Bldg B3, Union City, CA 94587. The listed phone number is (510) 602-5034.

What is Michael Olalia's specialty?

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

Is Michael Olalia enrolled in Medicare?

Yes. Michael Olalia 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 organization bills Medicare for Michael Olalia's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Olalia reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, CA). The 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 Michael Olalia'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 Michael Olalia was last updated on October 10, 2022. 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.