MICHAEL T. MAI MD
NPI 1124025598
Orthopaedic Surgery in Corona, CA

Q: What is Michael Mai's NPI number?

The NPI number for Michael Mai is 1124025598. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Q: What is Michael Mai's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Q: When was this NPI record last updated?

The NPPES record for Michael Mai was last updated on April 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since June 30, 2005PECOS EnrolledAccepts Medicare Assignment

21634 RETREAT PKWY, CORONA, CA 92883(951) 493-6930(951) 826-8136 Get Directions Write a Review

NPPES record last updated: April 14, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Michael T. Mai Md NPPES

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

MICHAEL T. MAI MD (NPI 1124025598) is an individual orthopaedic surgery provider in Corona, California, licensed in California (G57605) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Corona, and is a graduate of Stanford University School Of Medicine (1985).

NPPES Registry Identity

NPI1124025598

Entity TypeIndividualMale

Primary Taxonomy207X00000X

Provider Legal NameMICHAEL T. MAICredential: MD

Location Address21634 RETREAT PKWYCorona, CA 92883-6100

Mailing Address21634 Retreat PkwyCorona, CA 92883-6100 · (951) 493-6930 · Fax (951) 826-8136

Phone(951) 493-6930

Fax(951) 826-8136

Sole ProprietorNo

Medical School CMSStanford University School Of MedicineGraduated 1985

Enumeration DateJune 30, 2005

Last NPPES UpdateApril 14, 2025

NPPES CertifiedApril 14, 2025

✔ NPI 1124025598 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207X00000X

License✔ Licensed in CA · G57605

Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Also ListedOrthopaedic Surgery · Adult Reconstructive Orthopaedic SurgeryTaxonomy 207XS0114X · License G57605 (CA)

21634 RETREAT PKWY, Corona, CA 92883

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Secondary Practice Location 1

Location 1818 Magnolia Ave.Corona, CA 92879 · Phone (951) 493-6930 · Fax (951) 272-4093

Other Identifiers 2

Other200040738CA · Railroad

Other1730180415CA · Group Npi

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 T. Mai Md 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 ID9638254998

PECOS Enrollment IDI20080311000263

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 2

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 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.

33 services18 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92883 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

$91.88 typical visit price

range $59.60 – $179.42

Typical copayment $22.97 (range $14.90 – $44.85)

Most-billed visit code 99203

Established Patient

$74.08 typical visit price

range $19.37 – $146.42

Typical copayment $18.52 (range $4.84 – $36.60)

Most-billed visit code 99213

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.

Reported Quality Measures

Clinical Information Reconciliation

For at least one transition of care or referral received or patient encounter in which the MIPS eligible clinician has never before encountered the patient, the MIPS eligible clinician performs clinical information reconciliation.

28%415 patients2/55-star benchmark: 100%

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

100%65 patients5/55-star benchmark: 100%

Patient-Generated Health Data

Patient-generated health data or data from a non-clinical setting is incorporated into the certified EHR technology for at least one unique patient seen by the MIPS eligible clinician during the performance period.

4%395 patients

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from certified EHR technology to identify patient-specific educational resources and provide electronic access to those materials to at least one unique patient seen by the MIPS eligible…

97%395 patients4/55-star benchmark: 100%

Provide Patient Access

For at least one unique patient seen by the MIPS eligible clinician: (1) The patient (or the patient authorized representative) is provided timely access to view online, download, and transmit his or her health information; and (2) The MIPS eligible clinician…

92%395 patients4/55-star benchmark: 100%

Request/Accept Summary of Care

95%362 patients4/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of certified EHR technology to the patient (or the patient-authorized representative), or in…

52%395 patients3/55-star benchmark: 75%

Send a Summary of Care

For at least one transition of care or referral, the MIPS eligible clinician that transitions or refers their patient to another setting of care or health care provider-(1) creates a summary of care record using certified EHR technology; and (2)…

60%20 patients3/55-star benchmark: 100%

View, Download and Transmit (VDT)

During the performance period, at least one unique patient (or patient-authorized representatives) seen by the MIPS eligible clinician actively engages with the EHR made accessible by the MIPS eligible clinician.

47%395 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

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