DR. MARC-ALAN IWAHASHI M.D.,
NPI 1235123985
Family Medicine in Cupertino, CA

Active since September 08, 2005PECOS EnrolledAccepts Medicare Assignment
83.56/100
CMS Quality Rating
20555 PROSPECT RD, SUITE A, CUPERTINO, CA 95014(408) 253-5811(408) 725-0583 Get Directions Write a Review

NPPES record last updated: January 5, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Marc-alan Iwahashi M.d., NPPES

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

DR. MARC-ALAN IWAHASHI M.D., (NPI 1235123985) is an individual family medicine provider in Cupertino, California, licensed in California (G68531) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1987).

NPPES Registry Identity

NPI1235123985
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARC-ALAN IWAHASHICredential: M.D.,
Location Address20555 PROSPECT RD, SUITE ACupertino, CA 95014-5212
Mailing Address20555 Prospect Rd, Suite ACupertino, CA 95014-5212 · (408) 253-5811 · Fax (408) 725-0583
Fax(408) 725-0583
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1987
Enumeration DateSeptember 8, 2005
Last NPPES UpdateJanuary 5, 2012
NPI 1235123985 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in CA · G68531
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
20555 PROSPECT RD, Cupertino, CA 95014

Other Identifiers 4

Other770256595CA · Tax Id Number
Medicare UPINE78887CA
Medicare ID-Type Unspecified00G685310CA · Medicare Provider Number
Medicaid00G685310CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Marc-alan Iwahashi 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 ID8527238021
PECOS Enrollment IDI20110818000625
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.

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.

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.
187 services138 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
155 services155 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
113 services98 patients
Online digital evaluation and management service for an established patient for up to 7 days, total time 5-10 minutes 99421
This service involves a week-long digital assessment of your health status. It's conducted online by your healthcare provider, focusing on managing your existing health condition. The process takes 5-10 minutes of your time daily, ensuring optimal health management.
30 services27 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
24 services24 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95014 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
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality83.75
Promoting Interoperability100
Improvement Activities40
Cost61.45

Referred Medical Equipment & Supplies CMS DME claims 5

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
13 suppliers54 claims113 services$4.44 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
2 suppliers11 claims11 services$41.13 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier19 claims19 services$11.38 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
2 suppliers15 claims15 services$6.54 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
2 suppliers12 claims12 services$198.08 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 20

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

Student in an Organized Health Care Education/Training Program
20555 PROSPECT RD
CUPERTINO, CA 95014
Behavior Technician
20555 PROSPECT RD
CUPERTINO, CA 95014
Behavior Analyst
20555 PROSPECT RD
CUPERTINO, CA 95014
Student in an Organized Health Care Education/Training Program
20555 PROSPECT RD
CUPERTINO, CA 95014
Behavior Analyst
20555 PROSPECT RD
CUPERTINO, CA 95014
Student in an Organized Health Care Education/Training Program
20555 PROSPECT RD
CUPERTINO, CA 95014
Behavior Analyst
20555 PROSPECT RD
CUPERTINO, CA 95014
Student in an Organized Health Care Education/Training Program
20555 PROSPECT RD
CUPERTINO, CA 95014

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 Marc-alan Iwahashi's NPI number?

The NPI number for Marc-alan Iwahashi is 1235123985. It was assigned to this individual provider in the NPPES registry on September 8, 2005.

Where is Marc-alan Iwahashi located?

Marc-alan Iwahashi practices at 20555 Prospect Rd Suite A, Cupertino, CA 95014. The listed phone number is (408) 253-5811.

What is Marc-alan Iwahashi's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Marc-alan Iwahashi enrolled in Medicare?

Yes. Marc-alan Iwahashi 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.

When was this NPI record last updated?

The NPPES record for Marc-alan Iwahashi was last updated on January 5, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.