MICHAEL CHAFFIN N.P.
NPI 1558640235
Nurse Practitioner in Mountain View, CA

Active since August 11, 2011PECOS EnrolledAccepts Medicare Assignment
82.37/100
CMS Quality Rating
701 E EL CAMINO REAL, MOUNTAIN VIEW, CA 94040(650) 934-7150 Get Directions Write a Review

NPPES record last updated: April 3, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 3, 2024, Feb 2, 2022 (2 updates tracked since 2022).

About Michael Chaffin N.p. NPPES

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

MICHAEL CHAFFIN N.P. (NPI 1558640235) is an individual nurse practitioner in Mountain View, California, licensed in California (20962) and active in the NPI registry since August 2011. He is enrolled in Medicare PECOS, maintains a secondary practice location in Concord, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1558640235
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameMICHAEL CHAFFINCredential: N.P.
Location Address701 E EL CAMINO REALMountain View, CA 94040-2833
Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (650) 934-7150
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateAugust 11, 2011
Last NPPES UpdateApril 3, 20242 updates tracked since enumeration
NPPES CertifiedApril 3, 2024
NPI 1558640235 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in CA · 20962
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
701 E EL CAMINO REAL, Mountain View, CA 94040

Secondary Practice Location 1

Location 12540 East StConcord, CA 94520-1906 · Phone (925) 682-8200

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

Michael Chaffin N.p. 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 ID2466624218
PECOS Enrollment IDI20111020000469
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

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.

Anticoagulant management of patient taking warfarin 93793
Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.
189 services131 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94040 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.

82.37/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality84.58
Promoting Interoperability100
Improvement Activities40
Cost30.78

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.

Allergy & Immunology (Allergy)
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Family Medicine
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Radiology (Diagnostic Radiology)
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Psychiatry & Neurology (Neurology)
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Anesthesiology
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Dietitian, Registered
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Emergency Medicine (Sports Medicine)
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040
Physician Assistant
701 E EL CAMINO REAL
MOUNTAIN VIEW, CA 94040

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 Chaffin's NPI number?

The NPI number for Michael Chaffin is 1558640235. It was assigned to this individual provider in the NPPES registry on August 11, 2011.

Where is Michael Chaffin located?

Michael Chaffin practices at 701 E El Camino Real, Mountain View, CA 94040. The listed phone number is (650) 934-7150.

What is Michael Chaffin's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Michael Chaffin enrolled in Medicare?

Yes. Michael Chaffin 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 Michael Chaffin was last updated on April 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.