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DR. CAROLINE YEN-HSUEH LIN M.D., M.SC.
NPI 1598870123
Internal Medicine in San Diego, CA

Active since August 21, 2006PECOS EnrolledAccepts Medicare Assignment
3250 FORDHAM ST, SAN DIEGO, CA 92110(619) 221-5903 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Caroline Yen-hsueh Lin M.d., M.sc. NPPES

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

DR. CAROLINE YEN-HSUEH LIN M.D., M.SC. (NPI 1598870123) is an individual internal medicine provider in San Diego, California, licensed in Pennsylvania (MD431460) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of University Of New Mexico School Of Medicine (2004).

NPPES Registry Identity

NPI1598870123
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. CAROLINE YEN-HSUEH LINCredential: M.D., M.SC.
Location Address3250 FORDHAM STSan Diego, CA 92110-5339
Mailing Address9260 Towne Centre Dr, #17San Diego, CA 92121-3006 · (412) 877-5692
Phone(619) 221-5903
Sole ProprietorYes
Medical School CMSUniversity Of New Mexico School Of MedicineGraduated 2004
Enumeration DateAugust 21, 2006
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1598870123 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in PA · MD431460✔ Licensed in CA · A106659
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.
3250 FORDHAM ST, San Diego, CA 92110
Open in Google Maps ↗

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

Dr. Caroline Yen-hsueh Lin M.d., M.sc. 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 ID7618060096
PECOS Enrollment IDI20090911000689
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 Caroline Lin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
416 mi
Internal Medicine
710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1073606299 (408) 851-1000

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 92110 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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.

MR. ETHAN VAN TRUONG PHARM.D
Pharmacist
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (858) 221-6275
DHRUV MARWHA MD
Family Medicine
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (833) 574-2273
DR. DANIEL JOHNSON D.O.
Family Medicine
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (833) 574-2273
MR. ANDREW LAI WEI MD
Family Medicine
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (833) 574-2273
DR. ALFREDO ALCAUSIN MD
Internal Medicine
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (833) 574-2273
COURTNEY FUNK LCSW
Social Worker (Clinical)
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (123) 456-7890
ALEX PACK
Nurse Practitioner (Psychiatric/Mental Health)
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (833) 574-2273
DR. ELLINA BEKKERMAN-DONNER MD
Internal Medicine (Hospice and Palliative Medicine)
3250 FORDHAM ST
SAN DIEGO, CA 92110
San Diego County (619) 688-1600

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 Caroline Lin's NPI number?

The NPI number for Caroline Lin is 1598870123. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Caroline Lin located?

Caroline Lin practices at 3250 Fordham St, San Diego, CA 92110. The listed phone number is (619) 221-5903.

What is Caroline Lin's specialty?

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

Is Caroline Lin enrolled in Medicare?

Yes. Caroline Lin 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 Caroline Lin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Lin reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Caroline Lin'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 Caroline Lin was last updated on February 11, 2022. 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.