William Frederick Littlefield, DO
Student in an Organized Health Care Education/Training Program · Harrisburg, PA
William Frederick Littlefield, DO is a student in an organized health care education/training program with a practice address in Harrisburg, Pennsylvania, and NPI 1720783335, issued on Apr 3, 2023. Check the license with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Frederick Littlefield
- Credential
- DO
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 4300 Londonderry RD, Harrisburg, PA 17109
- Phone
- (717) 652-3000
- Enumerated
- Apr 3, 2023
- Record last updated
- Apr 3, 2023
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 12,792 in Pennsylvania → Look up another NPI →
Also registered at 4300 Londonderry RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Fabian Alcaraz-Angulo, MDInternal Medicine Physician1144696576
- Anne Valerie Allen, MDInternal Medicine Physician1558778993
- Eli Allen, DOFamily Medicine Physician1164083192
- Alia Alsaidy, DOInternal Medicine Physician1033475405
Verify William Frederick Littlefield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% more Medicare Part D claims than the average student in an organized health care education/training program in 2024
284 Medicare Part D claims for 138 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
Most prescribed
- Ondansetron Hcl77 claims
- Pantoprazole Sodium52 claims
- Meloxicam45 claims
- Cyclobenzaprine Hcl26 claims
- Cefadroxil24 claims
- Ondansetron Odt19 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.
William Frederick Littlefield among 12,792 student in an organized health care education/training program records in Pennsylvania
William Frederick Littlefield, DO is one of 12,792 student in an organized health care education/training program records with a practice address in Pennsylvania. 33% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 31% of them.
- NPI issued2023 · 31% of these records are older, 55% newer
- In a Medicare fileYes · 33% of these records are
- In the CMS Doctors and Clinicians fileNo · 4% of these records are
- Record last updated2023 · 16% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
230 student in an organized health care education/training program records list a practice address in Harrisburg
They are 230 of the 3,963 NPPES records with a practice address in Harrisburg, and 12,792 student in an organized health care education/training program records in Pennsylvania.
All 12,792 in Pennsylvania → Every provider in Harrisburg → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Allison Brooks, DOHarrisburg, PA 171091316433394
- Michael Brown, D.O.Harrisburg, PA 171091750024774
- Jason Chickness, DOHarrisburg, PA 171091235879750
- Richard Evans, DOHarrisburg, PA 171091679149645
- Breanna Furlong, DOHarrisburg, PA 171091982282588
- Matthew Kendall, DOHarrisburg, PA 171091912586769
- Bradley LazzariHarrisburg, PA 171091053930446
- Brian Omslaer, D.O.Harrisburg, PA 171091619542909
Common questions
What is William Frederick Littlefield, DO's NPI number?
William Frederick Littlefield, DO's National Provider Identifier (NPI) is 1720783335, issued on Apr 3, 2023. An NPI identifies a provider in billing; it is not a license.
Where is William Frederick Littlefield, DO located?
The NPPES record lists a practice address at 4300 Londonderry RD, Harrisburg, PA, 17109. Phone: (717) 652-3000. Providers update this record themselves, so call before visiting.
How can I verify William Frederick Littlefield, DO's license?
Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does William Frederick Littlefield, DO prescribe under Medicare Part D?
In 2024, William Frederick Littlefield, DO had 284 Medicare Part D claims for 138 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.