Nathaniel D. Witmer, D.P.M.
Podiatrist · Valencia, CA
Nathaniel D. Witmer, D.P.M. is a podiatrist with a practice address in Valencia, California, and NPI 1497172712, issued on Mar 25, 2014. Check the license (California E5395, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathaniel D. Witmer
- Credential
- D.P.M.
- Primary taxonomy
- Podiatrist 213E00000X
- License numbers
- E5395 CA
016.005661 IL
Self-reported in NPPES; status is on the state search - Practice location
- 23803 Mcbean Pkwy, Valencia, CA 91355
- Phone
- (661) 481-2400
- Enumerated
- Mar 25, 2014
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180205002894); accepts Medicare assignment
- Medical or professional school
- California School Of Podiatric Medicine, 2014
- Entity
- Type 1 · individual
8 nearest podiatrist records → All 1,023 in California → Look up another NPI →
Also registered at 23803 Mcbean Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Cavender, MDDermatology Physician1487626867
- Tony Lo, DOPain Medicine Physician1053653881
- Jessica Murphy, M.D.Obstetrics & Gynecology Physician1801158282
- Jennifer Sung, M.D.Urology Physician1043411887
- Louisa Tostado, PA-CPhysician Assistant1013730787
- Gene Tran, D.O.Neurology Physician1003094046
Verify Nathaniel D. Witmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license E5395Check 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% more Medicare Part D claims than the average podiatrist in 2024
595 Medicare Part D claims for 256 beneficiaries, against an average of 314 among the 6,407 providers of this specialty who prescribed in Part D.
Most prescribed
- Ciclopirox150 claims
- Terbinafine Hcl96 claims
- Ammonium Lactate82 claims
- Ketoconazole58 claims
- Meloxicam48 claims
- Diclofenac Sodium31 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.
Bills Medicare through one group practice
- Providence Facey Medical FoundationValencia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel D. Witmer among 1,023 podiatrist records in California
Nathaniel D. Witmer, D.P.M. is one of 1,023 podiatrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 82% of them.
- NPI issued2014 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2014 · median 1998 among the 593 with a school on file
- Record last updated2018 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 213E00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Podiatrist providers in California
There are 1,023 podiatrist records in California.
All 1,023 in California → Every provider in Valencia → Podiatrist nationwide →
The 8 podiatrist records with the nearest ZIP codes
- Justin Franson, DPMValencia, CA 913551215946157
- Robert Brodsky, DPMTarzana, CA 913561528176443
- Fardin Hakakian, D.P.M.Tarzana, CA 913561801812359
- David Ng, DPMThousand Oaks, CA 913601326101593
- Bridget Tester, D.P.M.Thousand Oaks, CA 913601558584722
- Michael Zapf, D.P.M.Thousand Oaks, CA 913601215932090
- Daniel Geller, DPMWestlake Village, CA 913611578618583
- Charles Kelman, D.P.MWestlake Village, CA 913611063490738
Common questions
What is Nathaniel D. Witmer, D.P.M.'s NPI number?
Nathaniel D. Witmer, D.P.M.'s National Provider Identifier (NPI) is 1497172712, issued on Mar 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel D. Witmer, D.P.M. located?
The NPPES record lists a practice address at 23803 Mcbean Pkwy, Valencia, CA, 91355. Phone: (661) 481-2400. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel D. Witmer, D.P.M.'s license?
NPPES lists California license number E5395, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nathaniel D. Witmer, D.P.M. prescribe under Medicare Part D?
In 2024, Nathaniel D. Witmer, D.P.M. had 595 Medicare Part D claims for 256 beneficiaries; the average among podiatrist prescribers was 314. 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.