LAY LIN OWYONG MD
NPI 1871667477
Internal Medicine - Hematology & Oncology in Stockton, CA

Q: What is Lay Owyong's NPI number?

The NPI number for Lay Owyong is 1871667477. It was assigned to this individual provider in the NPPES registry on November 17, 2006.

Q: What is Lay Owyong's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Lay Owyong was last updated on December 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since November 17, 2006PECOS Enrolled

7373 WEST LN, STOCKTON, CA 95210(209) 476-2000 Get Directions Write a Review

NPPES record last updated: December 13, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Lay Lin Owyong Md NPPES

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

LAY LIN OWYONG MD (NPI 1871667477) is an individual hematology & oncology provider in Stockton, California, licensed in California (A54077) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1871667477

Entity TypeIndividualFemale

Primary Taxonomy207RH0003X

Provider Legal NameLAY LIN OWYONGCredential: MD

Location Address7373 WEST LNStockton, CA 95210-3377

Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262

Phone(209) 476-2000

Sole ProprietorNo

Enumeration DateNovember 17, 2006

Last NPPES UpdateDecember 13, 2021

✔ NPI 1871667477 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · A54077

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

7373 WEST LN, Stockton, CA 95210

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Other Identifiers 1

Medicaid00A540770CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lay Lin Owyong 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95210 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

$176.60 typical visit price

range $58.87 – $176.60

Typical copayment $44.15 (range $14.71 – $44.15)

Most-billed visit code 99205

Established Patient

$103.36 typical visit price

range $19.28 – $144.60

Typical copayment $25.84 (range $4.82 – $36.15)

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.

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.

DR. SYLVIA FERNANDES M.D.

Physical Medicine & Rehabilitation