Dr. Jeffrey Neil Mercer, MD, PhD
- Medicare services, 2024
- 617
- Medicare patients, 2024
- 130
- Part D claims, 2024
- 228
- Hospital affiliations
- 2
- Industry payments
- $6,092
- Practice address
- 1111 Ne 99th Ave, Portland, OR 97220
- Practice phone
- Call (503) 963-3030
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gastroenterology East at Gateway
Portland, Oregon
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. Jeffrey Neil Mercer is an orthopedic surgeon in Portland, Oregon
Dr. Mercer practices at Gastroenterology East at Gateway in Portland, Oregon.
Dr. Mercer's NPI, 1295991156, was assigned on July 31, 2008. Dr. Mercer graduated from Northwestern University Feinberg Medical School in 2008. Dr. Mercer holds Oregon license MD164786.
- NPI
- 1295991156NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496976656
- NPI enumeration date
- July 31, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 963-3030
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey Neil Mercer practices at Gastroenterology East at Gateway in Portland, Oregon
Dr. Mercer's primary practice is Gastroenterology East at Gateway, at 1111 Ne 99th Ave, Portland, OR 97220 in Multnomah County. The practice phone is (503) 963-3030.
- Gastroenterology East at Gateway1111 Ne 99th Ave, Portland, OR 97220 · Multnomah CountyPhone(503) 963-3030
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jeffrey Neil Mercer is affiliated with 5 sites of care and 1 medical group
Dr. Mercer's primary practice is Gastroenterology East at Gateway in Portland, Oregon. Dr. Mercer is also affiliated with Providence Portland Medical Center. The medical group on file is The Oregon Clinic. Dmand AI also links Dr. Mercer to 1 more hospital, 1 group practice or clinic and 1 home health agency, each 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. Jeffrey Neil Mercer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mercer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gastroenterology East at Gateway | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jeffrey Neil Mercer is one of 270 orthopedic surgeons in Oregon
Orthopaedic surgery is Dr. Mercer's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Mercer is licensed in Oregon.
Specialties and state licenses
- Orthopaedic surgery, OregonPrimary
Orthopedic surgeons near Dr. Mercer
Counts of orthopedic 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. Jeffrey Neil Mercer billed Medicare for 617 services in 2024
CMS data shows 617 Medicare services from Dr. Mercer across 12 procedure codes in 2024, for 130 Medicare patients. Medicare paid $19,275 for them.
Dr. Mercer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 3782024: 31417%
- Office and hospital visits
- 2023: 1892024: 16115%
- Imaging
- 2023: 1152024: 10013%
- Surgery
- 2023: 522024: 4219%
Where Dr. Mercer's Medicare services took place, 2024
- In an office59096%
- In a facility274%
Dr. Mercer compared with the Oregon median for orthopedic surgeons, 2024
- Dr. Mercer
- Oregon median
- Medicare services
- 617vs 44838% above
- Medicare patients
- 130vs 15416% below
- Part D claims
- 169vs 622.7 times
Medians across 264 orthopedic surgeons in Oregon with Dmand AI profiles that report each measure.
Dr. Mercer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mercer and other orthopedic surgeons in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeffrey Neil Mercer treated 130 Medicare patients in 2024, average age 74
CMS counts 130 Medicare patients who saw Dr. Mercer in 2024. The largest group is 65 to 74, with 55 patients. 72% of them have arthritis, and 68% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mercer's median patient age at 58, with 59% women.
Dr. Mercer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mercer's Medicare patients by sex, 2024
- Women7860%
- Men5240%
Chronic conditions among Dr. Mercer's Medicare patients, 2024
- Arthritis72%
- High blood pressure68%
- High cholesterol62%
- Mood disorders28%
- Diabetes27%
- Depression25%
- Atrial fibrillation24%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
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 58
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeffrey Neil Mercer wrote 228 Medicare Part D claims in 2024
In 2024, Dr. Mercer wrote 228 Medicare Part D claims for 98 patients. 96% of them were for generic drugs. CMS names the drug for 169 of them, across 4 drugs with 11 or more claims each, at $1,138 in total drug cost. In 2023, CMS named 141 claims across 3 drugs.
Dr. Mercer's Part D claims by kind of drug, 2024
- Generic220 claims96%
- Brand-name and other8 claims4%
Dr. Mercer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Mercer's Part D claims, 2024
- Opioids69%158 of 228 claims
- Antibiotics9%20 of 228 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1412024: 16920%
Drugs named by CMS: 4 in 2024, 3 in 2023.
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
Dr. Jeffrey Neil Mercer ranks in the 41st percentile for knee replacement in Medicare
Dr. Mercer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 13 procedures of knee replacement by Dr. Mercer, more than 41% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Mercer ranks in Medicare procedure volume
- Knee replacement
- 41st percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hip replacement: 1 to 10 procedures (CMS shows small counts as a range)
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jeffrey Neil Mercer received $6,092 in industry payments from 2016 to 2025
CMS Open Payments shows 47 general payments to Dr. Mercer from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 47% of the total. Stryker Corporation paid the most, $2,678.
General payments to Dr. Mercer by program year, 2016 to 2025
General payments to Dr. Mercer by kind, 2016 to 2025
- Food and beverage$2,85947%
- Education$2,25137%
- Travel and lodging$98216%
Companies that paid Dr. Mercer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jeffrey Neil Mercer graduated from Northwestern University Feinberg Medical School
Dr. Mercer graduated from Northwestern University Feinberg Medical School in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jeffrey Neil 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 | 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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Jeffrey Neil 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. Jeffrey Neil Mercer's NPI number?
Dr. Jeffrey Neil Mercer's NPI number is 1295991156. It was assigned on July 31, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey Neil Mercer?
Dr. Jeffrey Neil Mercer is an orthopedic surgeon in Portland, Oregon. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Jeffrey Neil Mercer practice?
Dr. Mercer practices at 1111 Ne 99th Ave, Portland, OR 97220. Dr. Mercer's primary practice is Gastroenterology East at Gateway in Portland, Oregon. Dmand AI also links Dr. Mercer to 1 hospital, 1 group practice or clinic and 1 home health agency.
What is Dr. Jeffrey Neil Mercer's office phone number?
The practice phone on file for Dr. Mercer is (503) 963-3030.
What is Dr. Jeffrey Neil Mercer's medical license number?
Dr. Mercer holds Oregon license MD164786.
Which hospitals is Dr. Jeffrey Neil Mercer affiliated with?
Dr. Mercer is affiliated with Providence Portland Medical Center. Dmand AI links Dr. Mercer to 1 more hospital.
What medical group is Dr. Jeffrey Neil Mercer part of?
Dr. Mercer is linked to The Oregon Clinic.
Does Dr. Jeffrey Neil Mercer accept Medicare?
Yes. CMS data shows Dr. Mercer billed Medicare for 617 services in 2024, and Dr. Mercer accepts Medicare assignment.
How many Medicare patients does Dr. Jeffrey Neil Mercer see?
CMS counts 130 Medicare patients who saw Dr. Mercer in 2024, with an average age of 74.
What services does Dr. Jeffrey Neil Mercer bill to Medicare?
In 2024, Dr. Mercer's most billed Medicare services were injected or infused drug (J3301), surgery: bones and joints (20610) and office visit, established patient (99213).
Show 4 more questionsShow fewer questions
Where did Dr. Jeffrey Neil Mercer go to medical school?
Dr. Mercer graduated from Northwestern University Feinberg Medical School in 2008.
What drugs does Dr. Jeffrey Neil Mercer prescribe most?
In 2024 Medicare Part D data, Dr. Mercer's most prescribed drugs by claims were Oxycodone HCl, Hydrocodone-Acetaminophen and Celecoxib.
Has Dr. Jeffrey Neil Mercer received payments from drug or device companies?
CMS Open Payments shows $6,092 in general payments to Dr. Mercer from 13 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Jeffrey Neil Mercer been practicing?
Dr. Mercer graduated from medical school in 2008, 18 years ago.
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