Peter M. Witherell, M.D.
Pain Medicine (Anesthesiology) Physician · Wilmington, DE
Peter M. Witherell, M.D. is a pain medicine (anesthesiology) physician with a practice address in Wilmington, Delaware, and NPI 1598790099, issued on Jul 12, 2006. Check the license (Delaware C1-0004878, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Peter M. Witherell
- Credential
- M.D.
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License number
- C1-0004878 DE
Self-reported in NPPES; status is on the state search - Practice location
- 3411 Silverside Road, Wilmington, DE 19810
- Phone
- (302) 478-7001
- Enumerated
- Jul 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (302) 478-7002
- Medicaid ID
- 0000752101 DE
- Medicare enrollment
- Enrolled (PECOS I20070328000422); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1991
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 15 in Delaware → Look up another NPI →
Also registered at 3411 Silverside Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deanna Candeloro, LPC-MHSP, LPCMHMental Health Counselor1033866025
- Jenifer Pugliese, MPTPhysical Therapist1437302486
Verify Peter M. Witherell 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 C1-0004878Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
97 Medicare Part D claims for 56 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 41 claims were for opioids.
Most prescribed
- Gabapentin29 claims
- Oxycodone-Acetaminophen14 claims
- Tramadol Hcl13 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): 97.2 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: $160.35
7 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 2,789 providers of this specialty with any payment received $3,225.41 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
- Interventional Spine Pain Consultants PANewark, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter M. Witherell among 15 pain medicine (anesthesiology) physician records in Delaware
Peter M. Witherell, M.D. is one of 15 pain medicine (anesthesiology) physician records with a practice address in Delaware. 73% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 60% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1991 · median 1993 among the 10 with a school on file
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in Delaware
There are 15 pain medicine (anesthesiology) physician records in Delaware.
All 15 in Delaware → Every provider in Wilmington → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Emmanuel Devotta, M.D.Wilmington, DE 198081083761258
- Pramod Yadhati, M.D.Wilmington, DE 198081306993316
- Neeraj Kapur, M.D.Wilmington, DE 198051730175399
- Howard Arian, MDDover, DE 199011639153778
- Senad Cemerlic, MDDover, DE 199011962421198
- Hersh Patel, MD, MBANewark, DE 197181912345950
- Irene Mavrakakis, MDDover, DE 199041477517308
- Amir Abdel Kader, MDNewark, DE 197131568993772
Common questions
What is Peter M. Witherell, M.D.'s NPI number?
Peter M. Witherell, M.D.'s National Provider Identifier (NPI) is 1598790099, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter M. Witherell, M.D. located?
The NPPES record lists a practice address at 3411 Silverside Road, Wilmington, DE, 19810. Phone: (302) 478-7001. Providers update this record themselves, so call before visiting.
How can I verify Peter M. Witherell, M.D.'s license?
NPPES lists Delaware license number C1-0004878, 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 Peter M. Witherell, M.D. prescribe under Medicare Part D?
In 2024, Peter M. Witherell, M.D. had 97 Medicare Part D claims for 56 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
What is Peter M. Witherell, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.2 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.