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WIEKE H LIEM M.D.
NPI 1164452546
Dermatology in Tustin, CA

Active since July 03, 2006PECOS EnrolledAccepts Medicare Assignment
97.5/100
CMS Quality Rating
17601 17TH ST # 10, TUSTIN, CA 92780(714) 790-0005(714) 699-2444 Get Directions Write a Review

NPPES record last updated: September 14, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Wieke H Liem M.d. NPPES

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

WIEKE H LIEM M.D. (NPI 1164452546) is an individual dermatology provider in Tustin, California, licensed in California (G70387) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1989).

NPPES Registry Identity

NPI1164452546
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameWIEKE H LIEMCredential: M.D.
Location Address17601 17TH ST # 10Tustin, CA 92780-1949
Mailing Address17601 17th St # 110Tustin, CA 92780-1949 · (714) 790-0005 · Fax (714) 699-2444
Phone(714) 790-0005
Fax(714) 699-2444
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 1989
Enumeration DateJuly 3, 2006
Last NPPES UpdateSeptember 14, 2023
NPPES CertifiedSeptember 14, 2023
✔ NPI 1164452546 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 # 10, Tustin, CA 92780
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Other Identifiers 2

Medicaid00G730871CA
OtherG70387CA · Medical License

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

Wieke H Liem M.d. 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 ID5890841407
PECOS Enrollment IDI20090923000740
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 Reassignments

2

Medicare enrollment records show Wieke Liem reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wieke H Liem, M.D.,inc.
Same address
Dermatology
17601 17TH ST STE 110
Tustin, CA 92780
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Wieke H Liem MD Inc
NPI 1073729257 (714) 790-0005
J Robert West, M.D., Inc
10 mi
Dermatology
400 NEWPORT CENTER DR STE 702
Newport Beach, CA 92660
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: J Robert West MD Inc
  • 121 clinicians in this Medicare group
NPI 1932154788 (949) 644-0101

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

Areas of Expertise CMS Part B claims 14

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
3,267 services482 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
869 services581 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
819 services547 patients
Biopsy of related skin growth, first growth 11102
A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.
306 services259 patients
Destruction of skin growth, 1-14 growths 17110
"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.
227 services191 patients
Destruction of precancer skin growth, 15 or more growths 17004
This procedure involves removing 15 or more precancerous skin growths to prevent them from developing into cancer. It's done using various methods like freezing, creams, or minor surgery. The goal is to protect your health by stopping cancer before it starts.
83 services60 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92780 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

97.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality95
Improvement Activities40

Reported Quality Measures

Advance Care Plan
100%679 patients5/55-star benchmark: 100%
Melanoma: Continuity of Care - Recall System
100%136 patients
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients screened: 40% · 513 patients
40%513 patients
Tobacco Use and Help with Quitting Among Adolescents
100%54 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Liem's NPI number?

The NPI number for Wieke Liem is 1164452546. It was assigned to this individual provider in the NPPES registry on July 3, 2006.

Where is Wieke Liem located?

Wieke Liem practices at 17601 17th St # 10, Tustin, CA 92780. The listed phone number is (714) 790-0005.

What is Wieke Liem's specialty?

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

Is Wieke Liem enrolled in Medicare?

Yes. Wieke Liem 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 organizations bill Medicare for Wieke Liem's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wieke Liem reassigns Medicare benefits to 2 organizations: Wieke H Liem, M.D.,inc. (Tustin, CA) and J Robert West, M.D., Inc (Newport Beach, CA). Each 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 Wieke Liem'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 Wieke Liem was last updated on September 14, 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.