Jennifer L. Chwalek, MD
Dermatology Physician · Union City, CA
Jennifer L. Chwalek, MD is a dermatology physician with a practice address in Union City, California, and NPI 1407999667, issued on Feb 15, 2007. Check the license (California A88261, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer L. Chwalek
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A88261 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3555 Whipple RD, Union City, CA 94587
- Phone
- (510) 675-3030
- Enumerated
- Feb 15, 2007
- Record last updated
- Jun 10, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120127000200); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 3555 Whipple RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jennifer L. Chwalek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A88261Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average dermatology physician in 2024
137 Medicare Part D claims for 73 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.
Most prescribed
- Mupirocin30 claims
- Cephalexin21 claims
- Triamcinolone Acetonide15 claims
- Doxycycline Hyclate12 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): 100 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: $329.05
11 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Schweiger Dermatology PCLivingston, NJ
- Union Square Laser DermatologyNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer L. Chwalek among 2,083 dermatology physician records in California
Jennifer L. Chwalek, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2003 · median 2006 among the 1,450 with a school on file
- Record last updated2008 · 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 Union City → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Kimberly ChunUnion City, CA 945871316381304
- Michael Hardy, M.D.Union City, CA 945871437237203
- Gun Ho LeeUnion City, CA 945871871120576
- Lucy Liu, MDUnion City, CA 945871568951838
- Eunice Tsai, M.D.Union City, CA 945871609070051
- Ari Udugama, M.D.Union City, CA 945871093893851
- Juliana Cinque, MDPleasanton, CA 945881083643084
- Minh Dang, MDPleasanton, CA 945881629058441
Common questions
What is Jennifer L. Chwalek, MD's NPI number?
Jennifer L. Chwalek, MD's National Provider Identifier (NPI) is 1407999667, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer L. Chwalek, MD located?
The NPPES record lists a practice address at 3555 Whipple RD, Union City, CA, 94587. Phone: (510) 675-3030. Providers update this record themselves, so call before visiting.
How can I verify Jennifer L. Chwalek, MD's license?
NPPES lists California license number A88261, 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 Jennifer L. Chwalek, MD prescribe under Medicare Part D?
In 2024, Jennifer L. Chwalek, MD had 137 Medicare Part D claims for 73 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Jennifer L. Chwalek, MD's MIPS final score?
The 2023 MIPS final score is 100 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.