Dyanne Westerberg, DO
Family Medicine Physician · Wilmington, DE
Dyanne Westerberg, DO is a family medicine physician with a practice address in Wilmington, Delaware, and NPI 1215911987, issued on Dec 5, 2005. Check the license (Delaware C2-0003315, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Dyanne Westerberg
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- C2-0003315 DE
25MB08313300 NJ
OS005360L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1401 Foulk RD Ste 100B, Wilmington, DE 19803
- Phone
- (302) 477-3300
- Enumerated
- Dec 5, 2005
- Record last updated
- Mar 24, 2026
- Fax
- (302) 477-3311
- Medicare enrollment
- Enrolled (PECOS I20250805000160); may accept Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1983
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 518 in Delaware → Look up another NPI →
Also registered at 1401 Foulk RD Ste 100B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sanjay Kulkarni, M.D.Family Medicine Physician1164865598
- James Larosa, M.D.Family Medicine Physician1902337124
- Christopher Parronchi, MDEmergency Medicine Physician1609336528
Verify Dyanne Westerberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C2-0003315Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family medicine physician in 2024
388 Medicare Part D claims for 104 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Levothyroxine Sodium32 claims
- Lorazepam21 claims
- Amlodipine Besylate20 claims
- Quetiapine Fumarate20 claims
- Lisinopril17 claims
- Citalopram Hbr15 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): 72.5 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).
Dyanne Westerberg among 518 family medicine physician records in Delaware
Dyanne Westerberg, DO is one of 518 family medicine physician records with a practice address in Delaware. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1983 · median 2002 among the 323 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
163 family medicine physician records list a practice address in Wilmington
They are 163 of the 6,291 NPPES records with a practice address in Wilmington, and 518 family medicine physician records in Delaware.
All 518 in Delaware → Every provider in Wilmington → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Bercaw, MDWilmington, DE 198031205814241
- Heather Bittner-Fagan, MDWilmington, DE 198031013995059
- David Estock, M.D.Wilmington, DE 198031275533135
- Lawrence Markman, MDWilmington, DE 198031154313179
- Lisa Maxwell, MDWilmington, DE 198031316978786
- M Metzger, M.D.Wilmington, DE 198031275564957
- Matthew O'Brien, M.D.Wilmington, DE 198031417996935
- James Salva, M.D.Wilmington, DE 198031538104856
Common questions
What is Dyanne Westerberg, DO's NPI number?
Dyanne Westerberg, DO's National Provider Identifier (NPI) is 1215911987, issued on Dec 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Dyanne Westerberg, DO located?
The NPPES record lists a practice address at 1401 Foulk RD Ste 100B, Wilmington, DE, 19803. Phone: (302) 477-3300. Providers update this record themselves, so call before visiting.
How can I verify Dyanne Westerberg, DO's license?
NPPES lists Delaware license number C2-0003315, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dyanne Westerberg, DO prescribe under Medicare Part D?
In 2024, Dyanne Westerberg, DO had 388 Medicare Part D claims for 104 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Dyanne Westerberg, DO's MIPS final score?
The 2023 MIPS final score is 72.5 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.