Dr. David W. Mercer, MD
- Medicare services, 2023
- 31
- Part D claims, 2023
- 27
- Hospital affiliations
- 3
- Industry payments
- $32,251
- Medical group
- 1
- Practice address
- 551 Hill Country Drive, Kerrville, TX 78028
- Practice phone
- Call (830) 896-4200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mercer'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. David W. Mercer is a general surgeon in Kerrville, Texas
Dr. Mercer practices at Peterson Regional Medical Center in Kerrville, Texas, part of Peterson Health.
Dr. Mercer's NPI, 1780609180, was assigned on July 13, 2006. Dr. Mercer graduated from University of Wisconsin School of Medicine in 1986. Dr. Mercer holds Nebraska license 25326.
- NPI
- 1780609180NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395890206
- NPI enumeration date
- July 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (830) 896-4200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David W. Mercer practices at Peterson Regional Medical Center in Kerrville, Texas
Dr. Mercer's primary practice is Peterson Regional Medical Center, at 551 Hill Country Drive, Kerrville, TX 78028 in Kerr County. The practice phone is (830) 896-4200.
- Peterson Regional Medical Center551 Hill Country Drive, Kerrville, TX 78028 · Kerr CountyPhone(830) 896-4200
Source: Dmand AI Affiliation Data
Dr. David W. Mercer is affiliated with 3 sites of care and 1 medical group
Dr. Mercer's primary practice is Peterson Regional Medical Center in Kerrville, Texas, part of Peterson Health. Dr. Mercer is also affiliated with Nebraska Medical Center. The medical group on file is UNMC Physicians. Dmand AI also links Dr. Mercer to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David W. Mercer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mercer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peterson Regional Medical Center | Available with a free account |
| +2 more affiliated sites | 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 Peterson Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David W. Mercer is one of 1,939 general surgeons in Texas
Surgery is Dr. Mercer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Mercer's licenses on file in 2 states: Nebraska and Texas.
Specialties and state licenses
- Surgery, NebraskaPrimary
- Texas license
General surgeons near Dr. Mercer
Counts of general surgeons 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. David W. Mercer billed Medicare for 31 services in 2023
CMS data shows 31 Medicare services from Dr. Mercer across 1 procedure code in 2023. Medicare paid $1,124 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mercer's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 142023: 31121%
Dr. Mercer compared with the Texas median for general surgeons, 2023
- Dr. Mercer
- Texas median
- Medicare services
- 31vs 11874% below
- Part D claims
- 27vs 4236% below
Medians across 1,674 general surgeons in Texas with Dmand AI profiles that report each measure.
Dr. Mercer's most billed Medicare procedure codes, 2023
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. Mercer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mercer and other general surgeons in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David W. Mercer's patients have a median age of 16
Across all payers, Dmand AI patient panel data puts Dr. Mercer's median patient age at 16, with 40% women.
Dr. Mercer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 16
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. David W. Mercer wrote 27 Medicare Part D claims in 2023
In 2023, Dr. Mercer wrote 27 Medicare Part D claims. They cover 1 drug, with $254 in total drug cost. In 2022, CMS named 58 claims across 4 drugs.
Dr. Mercer'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.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 582023: 2753%
Drugs named by CMS: 1 in 2023, 4 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. David W. Mercer takes part in Medicare
Dr. Mercer 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.
Dr. David W. Mercer received $32,251 in industry payments from 2016 to 2024
CMS Open Payments shows 55 general payments to Dr. Mercer from 3 drug and device companies from 2016 to 2024. Speaker and faculty fees make up the largest share, 56% of the total. Celgene Corporation paid the most, $31,017.
General payments to Dr. Mercer by program year, 2016 to 2024
General payments to Dr. Mercer by kind, 2016 to 2024
- Speaker and faculty fees$18,00056%
- Travel and lodging$12,99040%
- Food and beverage$7602%
- Consulting fees$5002%
Companies that paid Dr. Mercer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David W. Mercer graduated from University of Wisconsin School of Medicine
Dr. Mercer graduated from University of Wisconsin School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David W. Mercer'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 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) |
| 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) |
| 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. David W. Mercer
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. David W. Mercer's NPI number?
Dr. David W. Mercer's NPI number is 1780609180. It was assigned on July 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David W. Mercer?
Dr. David W. Mercer is a general surgeon in Kerrville, Texas. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. David W. Mercer practice?
Dr. Mercer practices at 551 Hill Country Drive, Kerrville, TX 78028. Dr. Mercer's primary practice is Peterson Regional Medical Center in Kerrville, Texas, part of Peterson Health. Dmand AI also links Dr. Mercer to 1 hospital.
What is Dr. David W. Mercer's office phone number?
The practice phone on file for Dr. Mercer is (830) 896-4200.
What is Dr. David W. Mercer's medical license number?
Dr. Mercer holds Nebraska license 25326, one of the licenses on file in 2 states.
Which states has Dr. David W. Mercer been licensed in?
Dmand AI has state licenses on file for Dr. Mercer in Nebraska and Texas.
Which hospitals is Dr. David W. Mercer affiliated with?
Dr. Mercer practices at Peterson Regional Medical Center in Kerrville, Texas. Dr. Mercer is also affiliated with Nebraska Medical Center. Dmand AI links Dr. Mercer to 1 more hospital.
What medical group is Dr. David W. Mercer part of?
Dr. Mercer is linked to UNMC Physicians.
Does Dr. David W. Mercer accept Medicare?
Yes. CMS data shows Dr. Mercer billed Medicare for 31 services in 2023, and Dr. Mercer accepts Medicare assignment.
What services does Dr. David W. Mercer bill to Medicare?
In 2023, Dr. Mercer's most billed Medicare services were hospital inpatient care (99231).
Show 4 more questionsShow fewer questions
Where did Dr. David W. Mercer go to medical school?
Dr. Mercer graduated from University of Wisconsin School of Medicine in 1986.
What drugs does Dr. David W. Mercer prescribe most?
In 2023 Medicare Part D data, Dr. Mercer's most prescribed drugs by claims were Sodium Chloride.
Has Dr. David W. Mercer received payments from drug or device companies?
CMS Open Payments shows $32,251 in general payments to Dr. Mercer from 3 companies from 2016 to 2024. The largest total came from Celgene Corporation.
How long has Dr. David W. Mercer been practicing?
Dr. Mercer graduated from medical school in 1986, 40 years ago.
Selling to surgery practices?
See general surgeons in Texas 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