Dr. William Walter Long, MD
- Part D claims, 2024
- 37
- Industry payments
- $2,390
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1069 Delaware Ave, Marion, OH 43302
- Practice phone
- Call (614) 566-0152
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
OH Independent Medical Group
Marion, Ohio
Find Dr. Long's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William Walter Long is a pediatrician in Marion, Ohio
Dr. Long practices at OH Independent Medical Group in Marion, Ohio.
Dr. Long's NPI, 1356337703, was assigned on September 21, 2005. Dr. Long holds Ohio license 35058570L.
- NPI
- 1356337703NPI Registry (opens in a new tab)
- NPI enumeration date
- September 21, 2005
- NPI status
- Active
- Practice phone
- (614) 566-0152
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. William Walter Long practices at OH Independent Medical Group in Marion, Ohio
Dr. Long's primary practice is OH Independent Medical Group, at 1069 Delaware Ave, Marion, OH 43302 in Marion County. The practice phone is (614) 566-0152.
- OH Independent Medical Group1069 Delaware Ave, Marion, OH 43302 · Marion CountyPhone(614) 566-0152
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Walter Long is affiliated with 2 sites of care and 1 medical group
Dr. Long's primary practice is OH Independent Medical Group in Marion, Ohio. The medical group on file is OhioHealth Physician Group. Dmand AI also links Dr. Long to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William Walter Long's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Long practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OH Independent Medical Group | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Walter Long is one of 2,468 pediatricians in Ohio
Pediatrics is Dr. Long's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Long is licensed in Ohio.
Specialties and state licenses
- Pediatrics, OhioPrimary
Pediatricians near Dr. Long
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Walter Long's patients have a median age of 12
Across all payers, Dmand AI patient panel data puts Dr. Long's median patient age at 12, with 39% women.
Dr. Long's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 12
Patient panel by sex, all payers
- Women39%
- Men61%
Source: Dmand AI Patient Panel Data
Dr. William Walter Long wrote 37 Medicare Part D claims in 2024
In 2024, Dr. Long wrote 37 Medicare Part D claims. 92% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $364 in total drug cost.
Dr. Long's Part D claims by kind of drug, 2024
- Generic34 claims92%
- Brand-name and other3 claims8%
Dr. Long's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. William Walter Long received $2,390 in industry payments from 2016 to 2025
CMS Open Payments shows 155 general payments to Dr. Long from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Supernus Pharmaceuticals, Inc. paid the most, $412.
General payments to Dr. Long by program year, 2016 to 2025
Companies that paid Dr. Long the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Walter Long's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Walter Long
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Walter Long's NPI number?
Dr. William Walter Long's NPI number is 1356337703. It was assigned on September 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William Walter Long?
Dr. William Walter Long is a pediatrician in Marion, Ohio. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. William Walter Long practice?
Dr. Long practices at 1069 Delaware Ave, Marion, OH 43302. Dr. Long's primary practice is OH Independent Medical Group in Marion, Ohio. Dmand AI also links Dr. Long to 1 group practice or clinic.
What is Dr. William Walter Long's office phone number?
The practice phone on file for Dr. Long is (614) 566-0152.
What is Dr. William Walter Long's medical license number?
Dr. Long holds Ohio license 35058570L.
What medical group is Dr. William Walter Long part of?
Dr. Long is linked to OhioHealth Physician Group.
What drugs does Dr. William Walter Long prescribe most?
In 2023 Medicare Part D data, Dr. Long's most prescribed drugs by claims were Metoprolol Tartrate and Midodrine HCl.
Has Dr. William Walter Long received payments from drug or device companies?
CMS Open Payments shows $2,390 in general payments to Dr. Long from 26 companies from 2016 to 2025. The largest total came from Supernus Pharmaceuticals, Inc.
How long has Dr. William Walter Long been practicing?
Dr. Long's NPI was assigned in 2005.
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