Grace Kim Sohn, M.D.
Dermatology Physician · Walnut Creek, CA
Grace Kim Sohn, M.D. is a dermatology physician with a practice address in Walnut Creek, California, and NPI 1023405727, issued on Apr 20, 2015. Check the license (California A144607, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Grace Kim Sohn
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A144607 CA
Self-reported in NPPES; status is on the state search - Practice location
- 355 Lennon LN Ste 255, Walnut Creek, CA 94598
- Phone
- (925) 932-7704
- Enumerated
- Apr 20, 2015
- Record last updated
- Aug 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190802002854); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2015
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 355 Lennon LN Ste 255
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hovik Ashchyan, MDDermatology Physician1710477088
- Elaine LimSurgical Physician Assistant1982267290
- Nicole Petro, PA-CMedical Physician Assistant1134373392
Verify Grace Kim Sohn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A144607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average dermatology physician in 2024
143 Medicare Part D claims for 101 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Doxycycline Hyclate68 claims
- Mupirocin41 claims
- Doxycycline Monohydrate13 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): 98.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $30.49
1 payment: 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.
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
- Golden State Dermatology Associates, Inc.Walnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grace Kim Sohn among 2,083 dermatology physician records in California
Grace Kim Sohn, 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 2015, is newer than 77% of them.
- NPI issued2015 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2015 · median 2006 among the 1,450 with a school on file
- Record last updated2020 · 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 Walnut Creek → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Edward Becker, MDWalnut Creek, CA 945981962515858
- Paru Chaudhari, MDWalnut Creek, CA 945981811148224
- Errol Craig, M.D., PHDWalnut Creek, CA 945981659344281
- Christina Fonseca, M.D.Walnut Creek, CA 945981225222128
- Nancy Franklin, MDWalnut Creek, CA 945981669550745
- Stacey Hunt, MDWalnut Creek, CA 945981841362688
- Stewart Kupetz, MDWalnut Creek, CA 945981366516973
- Min-Wei Lee, M.D.Walnut Creek, CA 945981124014741
Common questions
What is Grace Kim Sohn, M.D.'s NPI number?
Grace Kim Sohn, M.D.'s National Provider Identifier (NPI) is 1023405727, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Grace Kim Sohn, M.D. located?
The NPPES record lists a practice address at 355 Lennon LN Ste 255, Walnut Creek, CA, 94598. Phone: (925) 932-7704. Providers update this record themselves, so call before visiting.
How can I verify Grace Kim Sohn, M.D.'s license?
NPPES lists California license number A144607, 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 Grace Kim Sohn, M.D. prescribe under Medicare Part D?
In 2024, Grace Kim Sohn, M.D. had 143 Medicare Part D claims for 101 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Grace Kim Sohn, M.D.'s MIPS final score?
The 2023 MIPS final score is 98.3 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.