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GARY STEWART LEE MD
NPI 1710943113
Internal Medicine - Geriatric Medicine in Fremont, CA

Active since April 25, 2006PECOS EnrolledAccepts Medicare Assignment
80.58/100
CMS Quality Rating
42808 CHRISTY ST STE 216, FREMONT, CA 94538(408) 900-8838(408) 962-0235 Get Directions Write a Review

NPPES record last updated: October 17, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gary Stewart Lee Md NPPES

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

GARY STEWART LEE MD (NPI 1710943113) is an individual geriatric medicine provider in Fremont, California, licensed in California (G61379) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (1986).

NPPES Registry Identity

NPI1710943113
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameGARY STEWART LEECredential: MD
Location Address42808 CHRISTY ST STE 216Fremont, CA 94538-3119
Mailing AddressPo Box 6792San Jose, CA 95150-6792 · (408) 657-3623 · Fax (888) 787-8035
Phone(408) 900-8838
Fax(408) 962-0235
Sole ProprietorNo
Medical School CMSUniversity Of California, San Diego School Of MedicineGraduated 1986
Enumeration DateApril 25, 2006
Last NPPES UpdateOctober 17, 2017
✔ NPI 1710943113 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in CA · G61379
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedInternal MedicineTaxonomy 207R00000X · License G61379 (CA)
42808 CHRISTY ST STE 216, Fremont, CA 94538
Open in Google Maps ↗

Other Identifiers 3

Medicaid00G613790CA
Medicare UPINE50799CA
Medicare ID-Type Unspecified00G613790CA

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

Gary Stewart Lee 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 ID8729142260
PECOS Enrollment IDI20090129000096
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 Gary Lee reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Santa Clara
6.5 mi
Federally Qualified Health Center (FQHC)
143 N MAIN ST
Milpitas, CA 95035
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1285629899 (408) 885-5000

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 94538 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
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.

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.

80.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality67.43
Promoting Interoperability100
Improvement Activities40
Cost46.5

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 Gary Lee's NPI number?

The NPI number for Gary Lee is 1710943113. It was assigned to this individual provider in the NPPES registry on April 25, 2006.

Where is Gary Lee located?

Gary Lee practices at 42808 Christy St Ste 216, Fremont, CA 94538. The listed phone number is (408) 900-8838.

What is Gary Lee's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Gary Lee enrolled in Medicare?

Yes. Gary Lee 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 Gary Lee's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gary Lee reassigns Medicare benefits to County Of Santa Clara (Milpitas, 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 Gary Lee'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 Gary Lee was last updated on October 17, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.