1. Home
  2. Directory
  3. California
  4. Lancaster
  5. Internal Medicine
  6. NPI Profile

DR. YON YARN D.O.
NPI 1023045309
Internal Medicine in Lancaster, CA

Active since June 26, 2006PECOS Enrolled
43839 15TH ST W, LANCASTER, CA 93534(661) 951-3009 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 7, 2023, Mar 17, 2018, Feb 28, 2018 (3 updates tracked since 2018).

About Dr. Yon Yarn D.o. NPPES

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

DR. YON YARN D.O. (NPI 1023045309) is an individual internal medicine provider in Lancaster, California, licensed in California (20A9285) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Bakersfield.

NPPES Registry Identity

NPI1023045309
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. YON YARNCredential: D.O.
Location Address43839 15TH ST WLancaster, CA 93534-4756
Mailing Address10311 Sirretta Peak PlBakersfield, CA 93311-8923 · (661) 808-4353
Phone(661) 951-3009
Sole ProprietorNo
Enumeration DateJune 26, 2006
Last NPPES UpdateMarch 7, 20233 updates tracked since enumeration
✔ NPI 1023045309 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · 20A9285
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License 20A9285 (CA)
Also ListedPain Medicine · Interventional Pain MedicineTaxonomy 208VP0014X · License 20A9285 (CA)
43839 15TH ST W, Lancaster, CA 93534
Open in Google Maps ↗

Secondary Practice Location 1

Location 1212 Goodman StBakersfield, CA 93305-2904 · Phone (661) 633-9753 · Fax (661) 633-2447

Other Identifiers 2

Medicaid020A92851CA
Other20A9285CA · Medical License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Yon Yarn D.o. 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 93534 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

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. EDGARDO SANTOS BARCELONA M.D.
Surgery
43839 15TH ST W
LANCASTER, CA 93534
Los Angeles County (661) 945-5984
MR. JAMES MILTON LCSW
Social Worker (Clinical)
43839 15TH ST W, HIGH DESERT MEDICAL GROUP
LANCASTER, CA 93534
Los Angeles County (661) 945-5984
NANCY LE
Pharmacist
43839 15TH ST W
LANCASTER, CA 93534
Los Angeles County (661) 942-0607
DR. QANWARPARTAP S SIDHU MD
Dermatology
43839 15TH ST W
LANCASTER, CA 93534
Los Angeles County (661) 945-5984
MS. CAROL LUISA GRANT-DOUGHERTY P.A.
Physician Assistant
43839 15TH ST W
LANCASTER, CA 93534
Los Angeles County (661) 945-5984
DR. VINCENT A.K. HO M.D.
Internal Medicine (Geriatric Medicine)
43839 15TH ST W
LANCASTER, CA 93534
Los Angeles County (661) 945-5984
DR. SAMI A NAFOOSI MD
Internal Medicine
43839 15TH ST W
LANCASTER, CA 93534
Los Angeles County (661) 945-5984
DR. CHARLES MYAING LIM M.D.
Internal Medicine
43839 15TH ST W
LANCASTER, CA 93534
Los Angeles County (661) 945-5984

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 Yon Yarn's NPI number?

The NPI number for Yon Yarn is 1023045309. It was assigned to this individual provider in the NPPES registry on June 26, 2006.

Where is Yon Yarn located?

Yon Yarn practices at 43839 15th St W, Lancaster, CA 93534. The listed phone number is (661) 951-3009.

What is Yon Yarn's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Yon Yarn enrolled in Medicare?

Yes. Yon Yarn is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Yon Yarn was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.