Dr. Stephen William Maddock, MD, PhD
- Medicare services, 2019
- 22
- Part D claims, 2019
- 168
- Industry payments
- $145
- Medical group
- 1
- State licenses
- 5
- Practice address
- 100 Sentara Cir, Williamsburg, VA 23188
- Practice phone
- Call (757) 242-9191
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Maddock'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. Stephen William Maddock is a general practice physician in Williamsburg, Virginia
Dr. Maddock practices with Mercy Clinic Family Medicine - Hollister, a medical group.
Dr. Maddock's NPI, 1821060328, was assigned on February 7, 2006. Dr. Maddock graduated from Macon & Joan Brock Virginia Health Sciences Eastern Virginia Medical School in 2000. Dr. Maddock holds Virginia license 0101233391.
- NPI
- 1821060328NPI Registry (opens in a new tab)
- NPI enumeration date
- February 7, 2006
- NPI status
- Active
- Practice phone
- (757) 242-9191
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Stephen William Maddock's practice address is in Williamsburg, Virginia
Dr. Maddock's practice address in the NPI Registry is 100 Sentara Cir, Williamsburg, VA 23188, in James City. The practice phone is (757) 242-9191.
- NPI Registry address100 Sentara Cir, Williamsburg, VA 23188 · James CityPhone(757) 242-9191
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen William Maddock is affiliated with 1 medical group
Dr. Maddock is part of Mercy Clinic Family Medicine - Hollister, a medical group in Hollister, Missouri.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen William Maddock's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maddock practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Clinic Family Medicine - Hollister | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mercy Clinic Family Medicine - Hollister and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stephen William Maddock is one of 264 general practice physicians in Virginia
General practice is Dr. Maddock's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dmand AI has Dr. Maddock's licenses on file in 5 states: Virginia, Missouri, Kansas, Florida and Indiana.
Specialties and state licenses
- General practice, VirginiaPrimary
- Missouri license
- Kansas license
- Florida license
- Indiana license
General practice physicians near Dr. Maddock
Counts of general practice physicians 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. Stephen William Maddock billed Medicare for 22 services in 2019
CMS data shows 22 Medicare services from Dr. Maddock across 2 procedure codes in 2019. Medicare paid $328 for them. Every service was in an office.
Dr. Maddock compared with the Virginia median for general practice physicians, 2019
- Dr. Maddock
- Virginia median
- Medicare services
- 22vs 17087% below
- Part D claims
- 168vs 10757% above
Medians across 125 general practice physicians in Virginia with Dmand AI profiles that report each measure.
Dr. Maddock's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Maddock?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maddock and other general practice physicians in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen William Maddock's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Maddock's median patient age at 65, with 0% women.
Dr. Maddock's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Stephen William Maddock wrote 168 Medicare Part D claims in 2019
In 2019, Dr. Maddock wrote 168 Medicare Part D claims. They cover 11 drugs, with $6,670 in total drug cost.
Dr. Maddock's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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.
Dr. Stephen William Maddock received $145 in industry payments from 2018 to 2022
CMS Open Payments shows 2 general payments to Dr. Maddock from 2 drug and device companies from 2018 to 2022. Food and beverage make up the largest share, 100% of the total. Miach Orthopaedics, Inc. paid the most, $103. It also lists 11 research payments totaling $1,512 in 2017.
General payments to Dr. Maddock by program year, 2018 to 2022
Companies that paid Dr. Maddock the most, 2018 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen William Maddock graduated from Macon & Joan Brock Virginia Health Sciences Eastern Virginia Medical School
Dr. Maddock graduated from Macon & Joan Brock Virginia Health Sciences Eastern Virginia Medical School in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen William Maddock'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 | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Stephen William Maddock
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. Stephen William Maddock's NPI number?
Dr. Stephen William Maddock's NPI number is 1821060328. It was assigned on February 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen William Maddock?
Dr. Stephen William Maddock is a general practice physician in Williamsburg, Virginia. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Stephen William Maddock practice?
Dr. Maddock practices at 100 Sentara Cir, Williamsburg, VA 23188. Dr. Maddock's primary practice is Mercy Clinic Family Medicine - Hollister, a medical group.
What is Dr. Stephen William Maddock's office phone number?
The practice phone on file for Dr. Maddock is (757) 242-9191. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Stephen William Maddock's email address?
Dmand AI checks professional and personal email addresses for Dr. Maddock through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Stephen William Maddock's medical license number?
Dr. Maddock holds Virginia license 0101233391, one of the licenses on file in 5 states.
Which states has Dr. Stephen William Maddock been licensed in?
Dmand AI has state licenses on file for Dr. Maddock in Virginia (2002 to 2026), Missouri (2017 to 2026), Kansas (2009 to 2025), Florida (2007 to 2014) and Indiana (2002 to 2009).
What medical group is Dr. Stephen William Maddock part of?
Dr. Maddock is part of Mercy Clinic Family Medicine - Hollister in Hollister, Missouri.
Who does Dr. Stephen William Maddock practice with?
Dmand AI links 1,481 HCPs to Dr. Maddock's primary medical group, 1 of them general practice physician. A free account lists them, with verified contacts.
Does Dr. Stephen William Maddock accept Medicare?
Yes. CMS data shows Dr. Maddock billed Medicare for 22 services in 2019.
Show 6 more questionsShow fewer questions
What services does Dr. Stephen William Maddock bill to Medicare?
In 2019, Dr. Maddock's most billed Medicare services were lab and pathology test (80053) and lab and pathology test (84443).
Where did Dr. Stephen William Maddock go to medical school?
Dr. Maddock graduated from Macon & Joan Brock Virginia Health Sciences Eastern Virginia Medical School in 2000.
What drugs does Dr. Stephen William Maddock prescribe most?
In 2019 Medicare Part D data, Dr. Maddock's most prescribed drugs by claims were Gabapentin, Amlodipine Besylate and Atenolol.
Has Dr. Stephen William Maddock received payments from drug or device companies?
CMS Open Payments shows $145 in general payments to Dr. Maddock from 2 companies from 2018 to 2022. The largest total came from Miach Orthopaedics, Inc.
How long has Dr. Stephen William Maddock been practicing?
Dr. Maddock graduated from medical school in 2000, 26 years ago.
What EHR does Dr. Stephen William Maddock's practice use?
Dmand AI tracks the EHR system at Mercy Clinic Family Medicine - Hollister. The vendor and product are available with a free Dmand AI account.
Selling to general practice practices?
See general practice physicians in Virginia by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card