William L. Carpenter
Family Nurse Practitioner · Berkeley, CA
William L. Carpenter is a family nurse practitioner with a practice address in Berkeley, California, and NPI 1457807208, issued on Aug 31, 2016. Check the license (California 95004994, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William L. Carpenter
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 95004994 CA
728571 CA
Self-reported in NPPES; status is on the state search - Practice location
- 875 Arlington Ave, Berkeley, CA 94707
- Phone
- (510) 847-6670
- Enumerated
- Aug 31, 2016
- Record last updated
- Dec 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161110002245); accepts Medicare assignment
- Entity
- Type 1 · individual
Verify William L. Carpenter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95004994Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average family nurse practitioner in 2024
476 Medicare Part D claims for 217 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 68 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen62 claims
- Prednisone42 claims
- Cephalexin39 claims
- Ondansetron Hcl30 claims
- Doxycycline Monohydrate23 claims
- Albuterol Sulfate Hfa18 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.
Industry payments in 2024: $138.60
8 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 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 3 group practices
- Sierra ER Department Physicians Medical Group IncSusanville, CA
- Team Physicians OF California Medical Group IncStockton, CA
- Trinity Emergency PhysiciansStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
76 family nurse practitioner records list a practice address in Berkeley
They are 76 of the 4,898 NPPES records with a practice address in Berkeley, and 16,966 family nurse practitioner records in California.
All 76 in Berkeley → All 16,966 in California → Every provider in Berkeley →
Other family nurse practitioner records in California
- Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
- Joshua AaronMission Hills, CA1477291805
- Orly Aaron, NPSan Francisco, CA1376912451
- Paris Gilbert Russ AaronSacramento, CA1871079111
- Tiffanne Aaronsen, FNPIndio, CA1568191807
- Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
- Frances Abad, FNPLos Angeles, CA1053504514
- Nnenna AbaezeLong Beach, CA1457820763
- Raymond Abagat, FNPTorrance, CA1306685821
- Ashley AbalCastaic, CA1740140698
Common questions
What is William L. Carpenter's NPI number?
William L. Carpenter's National Provider Identifier (NPI) is 1457807208, issued on Aug 31, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William L. Carpenter located?
The NPPES record lists a practice address at 875 Arlington Ave, Berkeley, CA, 94707. Phone: (510) 847-6670. Providers update this record themselves, so call before visiting.
How can I verify William L. Carpenter's license?
NPPES lists California license number 95004994, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William L. Carpenter prescribe under Medicare Part D?
In 2024, William L. Carpenter had 476 Medicare Part D claims for 217 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
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.