NPPES file of Aug 9, 2026

Wieke H. Liem, M.D.

Dermatology Physician · Tustin, CA

Wieke H. Liem, M.D. is a dermatology physician with a practice address in Tustin, California, and NPI 1164452546, issued on Jul 3, 2006. Check the license (California G70387, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164452546
Name
Wieke H. Liem
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
G70387 CA
Self-reported in NPPES; status is on the state search
Practice location
17601 17TH St # 10, Tustin, CA 92780
Phone
(714) 790-0005
Enumerated
Jul 3, 2006
Record last updated
Sep 14, 2023
Fax
(714) 699-2444
Medicaid ID
00G730871 CA
Medicare enrollment
Enrolled (PECOS I20090923000740); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Wieke H. Liem in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G70387
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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8% fewer Medicare Part D claims than the average dermatology physician in 2024

734 Medicare Part D claims for 261 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Wieke Liem734
  2. Specialty average797

Most prescribed

  1. Minoxidil116 claims
  2. Ketoconazole68 claims
  3. Triamcinolone Acetonide62 claims
  4. Valacyclovir61 claims
  5. Doxycycline Hyclate55 claims
  6. Clobetasol Propionate49 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 77.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score58.1
  2. Costout of 100 · 30%74.0
  3. Promoting interoperabilityout of 100 · 25%93.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $3,871.63

110 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Wieke Liem$3,871.63
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Wieke H. Liem among 2,083 dermatology physician records in California

Wieke H. Liem, M.D. is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 56% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1989 · median 2006 among the 1,450 with a school on file
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in California

There are 2,083 dermatology physician records in California.

The 8 dermatology physician records with the nearest ZIP codes

  1. Vince Afsahi, M.D.Tustin, CA 927801700888690
  2. Kalyn Hoffman, MDTustin, CA 927801558998716
  3. Christina Kraus, MDTustin, CA 927801225491293
  4. Anh-Dao Le, MDTustin, CA 927801619946779
  5. Divya Shokeen, M.DTustin, CA 927801205270832
  6. Daniel Nguyen, MDAnaheim, CA 928011366504250
  7. Sam Samimi, M.D.Anaheim, CA 928011093813347
  8. Sabrina UddinAnaheim, CA 928011407275217

Common questions

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

Wieke H. Liem, M.D.'s National Provider Identifier (NPI) is 1164452546, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.

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

The NPPES record lists a practice address at 17601 17TH St # 10, Tustin, CA, 92780. Phone: (714) 790-0005. Providers update this record themselves, so call before visiting.

How can I verify Wieke H. Liem, M.D.'s license?

NPPES lists California license number G70387, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Wieke H. Liem, M.D. prescribe under Medicare Part D?

In 2024, Wieke H. Liem, M.D. had 734 Medicare Part D claims for 261 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Wieke H. Liem, M.D.'s MIPS final score?

The 2023 MIPS final score is 77.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.