Joannie D. Sun, MD
Dermatology Physician · Newport Beach, CA
Joannie D. Sun, MD is a dermatology physician with a practice address in Newport Beach, California, and NPI 1881780229, issued on Oct 5, 2006. Check the license (California A72709, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joannie D. Sun
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A72709 CA
Self-reported in NPPES; status is on the state search - Practice location
- 230 Newport Center Dr, Newport Beach, CA 92660
- Phone
- (949) 706-7766
- Enumerated
- Oct 5, 2006
- Record last updated
- Sep 16, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (949) 706-2211
- Medicare enrollment
- Enrolled (PECOS I20040709001399); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 230 Newport Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ann Vu, MDDermatology Physician1497848295
Verify Joannie D. Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A72709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average dermatology physician in 2024
706 Medicare Part D claims for 256 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Minoxidil91 claims
- Betamethasone Diprop Augmented58 claims
- Fluorouracil55 claims
- Clobetasol Propionate49 claims
- Ketoconazole39 claims
- Triamcinolone Acetonide31 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 MIPS final score for 2023 (Medicare payment program): 78.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $481.32
26 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dermatology Associates OF Orange County IncNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joannie D. Sun among 2,083 dermatology physician records in California
Joannie D. Sun, MD 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
- Graduated1996 · median 2006 among the 1,450 with a school on file
- Record last updated2011 · 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.
All 2,083 in California → Every provider in Newport Beach → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Michelle Aszterbaum, MDNewport Beach, CA 926601992891329
- Susan Cox, MDNewport Beach, CA 926601811985724
- Lynn Dimino, M.D.Newport Beach, CA 926601699724542
- Leila Ettefagh, M.D.Newport Beach, CA 926601881643724
- Kristen Forman, M.D.Newport Beach, CA 926601992750335
- Peter Helton, DONewport Beach, CA 926601295775872
- Hui-Kyung Kim, MDNewport Beach, CA 926601720076631
- Navid Nami, D.O.Newport Beach, CA 926601710936646
Common questions
What is Joannie D. Sun, MD's NPI number?
Joannie D. Sun, MD's National Provider Identifier (NPI) is 1881780229, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joannie D. Sun, MD located?
The NPPES record lists a practice address at 230 Newport Center Dr, Newport Beach, CA, 92660. Phone: (949) 706-7766. Providers update this record themselves, so call before visiting.
How can I verify Joannie D. Sun, MD's license?
NPPES lists California license number A72709, 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 Joannie D. Sun, MD prescribe under Medicare Part D?
In 2024, Joannie D. Sun, MD had 706 Medicare Part D claims for 256 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Joannie D. Sun, MD's MIPS final score?
The 2023 MIPS final score is 78.4 of 100. 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.