William John Pierce, MD
Family Medicine Physician · Merrillville, IN
William John Pierce, MD is a family medicine physician with a practice address in Merrillville, Indiana, and NPI 1497838593, issued on Oct 23, 2006. Check the license (Indiana 01025010, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- William John Pierce
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 01025010 IN
Self-reported in NPPES; status is on the state search - Practice location
- 210 E 90TH Drive, Merrillville, IN 46410
- Phone
- (219) 738-2008
- Enumerated
- Oct 23, 2006
- Record last updated
- Jul 21, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (219) 738-2127
- Medicare enrollment
- Enrolled (PECOS I20090408000459); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1970
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,506 in Indiana → Look up another NPI →
Verify William John Pierce in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01025010Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% more Medicare Part D claims than the average family medicine physician in 2024
4,857 Medicare Part D claims for 259 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 806 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen311 claims
- Oxycodone-Acetaminophen249 claims
- Alprazolam216 claims
- Levothyroxine Sodium185 claims
- Gabapentin116 claims
- Metoprolol Succinate101 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): 13.1 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: $140.71
7 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, 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.
Bills Medicare through one group practice
- Pinnacle Healthcare LLCMerrillville, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William John Pierce among 3,506 family medicine physician records in Indiana
William John Pierce, MD is one of 3,506 family medicine physician records with a practice address in Indiana. 81% 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 19% of them.
- NPI issued2006 · 19% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1970 · median 2005 among the 2,196 with a school on file
- Record last updated2008 · 48% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 family medicine physician records list a practice address in Merrillville
They are 30 of the 1,972 NPPES records with a practice address in Merrillville, and 3,506 family medicine physician records in Indiana.
All 3,506 in Indiana → Every provider in Merrillville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Yaser Alobeid, MDMerrillville, IN 464101396792461
- Fadi Alzeidan, MDMerrillville, IN 464101245224724
- Angelique Brown, M.D.Merrillville, IN 464101770553166
- Johann Farley, MDMerrillville, IN 464101043275761
- William Forgey, M.D.Merrillville, IN 464101508800814
- Oranu Ibekie, M.D.Merrillville, IN 464101134190713
- Augustine Izah, MDMerrillville, IN 464101760476303
- Jong Kim, MDMerrillville, IN 464101891797569
Common questions
What is William John Pierce, MD's NPI number?
William John Pierce, MD's National Provider Identifier (NPI) is 1497838593, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William John Pierce, MD located?
The NPPES record lists a practice address at 210 E 90TH Drive, Merrillville, IN, 46410. Phone: (219) 738-2008. Providers update this record themselves, so call before visiting.
How can I verify William John Pierce, MD's license?
NPPES lists Indiana license number 01025010, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William John Pierce, MD prescribe under Medicare Part D?
In 2024, William John Pierce, MD had 4,857 Medicare Part D claims for 259 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is William John Pierce, MD's MIPS final score?
The 2023 MIPS final score is 13.1 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.