WIEKE H LIEM, M.D.,INC.
NPI 1073729257
Dermatology in Tustin, CA

Active since May 15, 2007
17601 17TH ST STE 110, TUSTIN, CA 92780(714) 790-0005(714) 538-1082 Get Directions Write a Review

NPPES record last updated: July 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Wieke H Liem, M.d.,inc. NPPES

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

WIEKE H LIEM, M.D.,INC. (NPI 1073729257) is a healthcare organization registered as a dermatology in Tustin, California and active in the NPI registry since May 2007. The organization lists Wieke H Liem, President, as its authorized official.

NPPES Registry Identity

NPI1073729257
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameWIEKE H LIEM, M.D.,INC.
Location Address17601 17TH ST STE 110Tustin, CA 92780-1949
Mailing Address17601 17th St Ste 110Tustin, CA 92780-1949 · (714) 790-0005 · Fax (714) 699-2444
Fax(714) 538-1082
Organization SubpartNo
Authorized OfficialWieke H LiemPresident · (714) 790-0005
Enumeration DateMay 15, 2007
Last NPPES UpdateJuly 2, 2026
NPPES CertifiedJuly 2, 2026
✔ NPI 1073729257 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in CA · G70387
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
17601 17TH ST STE 110, Tustin, CA 92780

Other Identifiers 2

OtherG70387CA · Medical License
Medicaid00G703871CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Wieke H Liem, M.d.,inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Wieke H Liem, M.D.,inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Dermatology
NPI 1164452546
17601 17TH ST # 10
Tustin, CA 92780
(714) 790-0005
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Wieke H Liem, M.D.,inc.'s NPI number?

The NPI number for Wieke H Liem, M.D.,inc. is 1073729257. It was assigned to this organization in the NPPES registry on May 15, 2007.

Where is Wieke H Liem, M.D.,inc. located?

Wieke H Liem, M.D.,inc. is located at 17601 17th St Ste 110, Tustin, CA 92780. The listed phone number is (714) 790-0005.

What is Wieke H Liem, M.D.,inc.'s specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Wieke H Liem, M.D.,inc. enrolled in Medicare?

Yes. Wieke H Liem, M.D.,inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Wieke H Liem, M.D.,inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Dermatology) reassigns their Medicare billing to Wieke H Liem, M.D.,inc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Wieke H Liem, M.D.,inc. was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.