William Clearfield, DO
Family Medicine Physician · Sparks, NV
William Clearfield, DO is a family medicine physician with a practice address in Sparks, Nevada, and NPI 1437162864, issued on Aug 15, 2006. Check the license (Nevada DO1474, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Clearfield
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- DO1474 NV
20A12513 CA
OS004244L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1625 E Prater Way Ste 103, Sparks, NV 89434
- Phone
- (775) 750-2189
- Enumerated
- Aug 15, 2006
- Record last updated
- Aug 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (775) 358-6843
- Medicaid ID
- 001135089 PA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,243 in Nevada → Look up another NPI →
Also registered at 1625 E Prater Way Ste 103
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Clearfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license DO1474Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average family medicine physician in 2024
983 Medicare Part D claims for 132 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 38 claims were for opioids.
Most prescribed
- Progesterone90 claims
- Anastrozole65 claims
- Testosterone Cypionate62 claims
- Levothyroxine Sodium54 claims
- Metformin Hcl43 claims
- Minoxidil27 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: $49.21
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
William Clearfield among 1,243 family medicine physician records in Nevada
William Clearfield, DO is one of 1,243 family medicine physician records with a practice address in Nevada. 77% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2013 · 45% 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 Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 family medicine physician records list a practice address in Sparks
They are 37 of the 2,016 NPPES records with a practice address in Sparks, and 1,243 family medicine physician records in Nevada.
All 1,243 in Nevada → Every provider in Sparks → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Maria Ahmad, MEDICAL DEGREE (MD)Sparks, NV 894341033747571
- Samia Amjad, MDSparks, NV 894341194344895
- Shruti Basho, MDSparks, NV 894341972791614
- Christopher Gay, DOSparks, NV 894341164003430
- Tracey Green, MDSparks, NV 894341487631768
- Timothy Grunert, MDSparks, NV 894341073073698
- Christopher Stanton, MDSparks, NV 894341902804834
- Andrew Swanson, DOSparks, NV 894341740267020
Common questions
What is William Clearfield, DO's NPI number?
William Clearfield, DO's National Provider Identifier (NPI) is 1437162864, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Clearfield, DO located?
The NPPES record lists a practice address at 1625 E Prater Way Ste 103, Sparks, NV, 89434. Phone: (775) 750-2189. Providers update this record themselves, so call before visiting.
How can I verify William Clearfield, DO's license?
NPPES lists Nevada license number DO1474, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Clearfield, DO prescribe under Medicare Part D?
In 2024, William Clearfield, DO had 983 Medicare Part D claims for 132 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.