Derek Williams, OD
- Part D claims, 2024
- 592
- Industry payments
- $147
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1522 Janes St, Saginaw, MI 48601
- Practice phone
- Call (517) 792-8751
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Janes Street Community Health CTR
FQHC - Main Site · Saginaw, Michigan
Find Derek Williams' 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.
Derek Williams is an optometrist in Saginaw, Michigan
Derek Williams practices at Janes Street Community Health CTR in Saginaw, Michigan.
Derek Williams' NPI, 1942793294, was assigned on June 12, 2018. Derek Williams holds Michigan license 4901005110.
- NPI
- 1942793294NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638425242
- NPI enumeration date
- June 12, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (517) 792-8751
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Derek Williams practices at Janes Street Community Health CTR in Saginaw, Michigan
Derek Williams' primary practice is Janes Street Community Health CTR, at 1522 Janes St, Saginaw, MI 48601 in Saginaw County. The practice phone is (517) 792-8751.
- Janes Street Community Health CTR1522 Janes St, Saginaw, MI 48601 · Saginaw CountyPhone(517) 792-8751
Source: Dmand AI Affiliation Data
Derek Williams is affiliated with 1 site of care and 1 medical group
Derek Williams' primary practice is Janes Street Community Health CTR in Saginaw, Michigan. The medical group on file is Great Lakes Bay Health Centers. Derek Williams' employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Derek Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Derek Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Janes Street Community Health CTR | Available with a free account |
Source: Dmand AI Technology Install Data
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Derek Williams is one of 1,416 optometrists in Michigan
Optometrist is Derek Williams' primary specialty in the NPI Registry, under taxonomy code 152W00000X. Derek Williams is licensed in Michigan.
Specialties and state licenses
- Optometrist, MichiganPrimary
Optometrists near Derek Williams
Counts of optometrists 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
Derek Williams' patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Derek Williams' median patient age at 56, with 62% women.
Derek Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Derek Williams wrote 592 Medicare Part D claims in 2024
In 2024, Derek Williams wrote 592 Medicare Part D claims for 132 patients. 23% of them were for generic drugs.
Derek Williams' Part D claims by kind of drug, 2024
- Generic138 claims23%
- Brand-name454 claims77%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Derek Williams takes part in Medicare
Derek Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Derek Williams received $147 in industry payments in 2025
CMS Open Payments shows 12 general payments to Derek Williams from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $64.
Companies that paid Derek Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Derek Williams'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Derek Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Derek Williams' NPI number?
Derek Williams' NPI number is 1942793294. It was assigned on June 12, 2018, and it is active in the NPI Registry.
What does Derek Williams specialize in?
Derek Williams is an optometrist in Saginaw, Michigan. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Derek Williams practice?
Derek Williams practices at 1522 Janes St, Saginaw, MI 48601. Derek Williams' primary practice is Janes Street Community Health CTR in Saginaw, Michigan.
What is Derek Williams' office phone number?
The practice phone on file for Derek Williams is (517) 792-8751.
What is Derek Williams' medical license number?
Derek Williams holds Michigan license 4901005110.
What medical group is Derek Williams part of?
Derek Williams is linked to Great Lakes Bay Health Centers.
Does Derek Williams accept Medicare?
Yes. CMS lists Derek Williams as accepting Medicare assignment.
Has Derek Williams received payments from drug or device companies?
CMS Open Payments shows $147 in general payments to Derek Williams from 4 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Derek Williams been practicing?
Derek Williams graduated from medical school in 2018, 8 years ago.
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