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LILIANA KOSSOY HAMLETT MD
NPI 1053452292
Obstetrics & Gynecology in San Jose, CA

Active since February 09, 2007PECOS Enrolled
80.58/100
CMS Quality Rating
751 S BASCOM AVE, OB GYN DEPT, SAN JOSE, CA 95128(408) 885-5550 Get Directions Write a Review

NPPES record last updated: September 12, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Liliana Kossoy Hamlett Md NPPES

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

LILIANA KOSSOY HAMLETT MD (NPI 1053452292) is an individual obstetrics & gynecology provider in San Jose, California, licensed in California (A50126) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053452292
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameLILIANA KOSSOY HAMLETTCredential: MD
Location Address751 S BASCOM AVE, OB GYN DEPTSan Jose, CA 95128-2604
Mailing Address751 S Bascom AveSan Jose, CA 95128-2604 · (408) 885-5000
Phone(408) 885-5550
Sole ProprietorNo
Enumeration DateFebruary 9, 2007
Last NPPES UpdateSeptember 12, 2007
✔ NPI 1053452292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A50126
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
751 S BASCOM AVE, San Jose, CA 95128
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Other Identifiers 3

Medicare PIN00A501260CA
Medicare UPINF92492CA
Medicaid00A501260CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Liliana Kossoy Hamlett Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Liliana Hamlett reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Santa Clara
Same address
Anesthesiology
751 S. BASCOM AVENUE
San Jose, CA 95128
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1588721500 (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 95128 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
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.

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

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.

MS. TRANG N NGUYEN PHARM.D
Pharmacist
751 S BASCOM AVE
SAN JOSE, CA 95128
Santa Clara County (408) 885-2360
DR. ILANA TRAYNIS M.D.
Student in an Organized Health Care Education/Training Program
751 S BASCOM AVE, DEPARTMENT OF MEDICINE
SAN JOSE, CA 95128
Santa Clara County (408) 885-6300
DR. ABBY KATHERINE SCURFIELD MD
Student in an Organized Health Care Education/Training Program
751 S BASCOM AVE
SAN JOSE, CA 95128
Santa Clara County (408) 885-5000
GABRIELLE MINEHAN CCP
Perfusionist
751 S BASCOM AVE
SAN JOSE, CA 95128
Santa Clara County (408) 885-5000
PRIYA NIGAM MD
Student in an Organized Health Care Education/Training Program
751 S BASCOM AVE
SAN JOSE, CA 95128
Santa Clara County (408) 885-5000
CAROLINE DENISON JORDAN
Student in an Organized Health Care Education/Training Program
751 S BASCOM AVE
SAN JOSE, CA 95128
Santa Clara County (408) 885-5000
MICHAEL NATHANSON MD, PHD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
751 S BASCOM AVE, CARDIAC SURGERY DEPT
SAN JOSE, CA 95128
Santa Clara County (408) 885-5000
EAMONN PATRICK DUNPHY MD
Internal Medicine
751 S BASCOM AVE, RADIATION ONCOLOGY
SAN JOSE, CA 95128
Santa Clara County (408) 885-4150

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 Liliana Hamlett's NPI number?

The NPI number for Liliana Hamlett is 1053452292. It was assigned to this individual provider in the NPPES registry on February 9, 2007.

Where is Liliana Hamlett located?

Liliana Hamlett practices at 751 S Bascom Ave Ob Gyn Dept, San Jose, CA 95128. The listed phone number is (408) 885-5550.

What is Liliana Hamlett's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Liliana Hamlett enrolled in Medicare?

Yes. Liliana Hamlett is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Liliana Hamlett's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Liliana Hamlett reassigns Medicare benefits to County Of Santa Clara (San Jose, 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 Liliana Hamlett'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 Liliana Hamlett was last updated on September 12, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.