Dr. Jeffrey Spencer Chen, MD, PhD
- Medicare services, 2024
- 660
- Medicare patients, 2024
- 226
- Part D claims, 2024
- 561
- Hospital affiliations
- 2
- Industry payments
- $24
- Practice address
- 2500 NE Neff Road, Bend, OR 97701
- Practice phone
- Call (541) 382-4321
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chen'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 Spencer Chen is a hospitalist in Bend, Oregon
Dr. Chen practices at St. Charles Bend in Bend, Oregon, part of St. Charles Health System.
Dr. Chen's NPI, 1578880845, was assigned on April 27, 2010. Dr. Chen holds Oregon license MD163508.
- NPI
- 1578880845NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517197056
- NPI enumeration date
- April 27, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (541) 382-4321
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey Spencer Chen practices at St. Charles Bend in Bend, Oregon
Dr. Chen's primary practice is St. Charles Bend, at 2500 NE Neff Road, Bend, OR 97701 in Deschutes County. The practice phone is (541) 382-4321.
- St. Charles Bend2500 NE Neff Road, Bend, OR 97701 · Deschutes CountyPhone(541) 382-4321
Source: Dmand AI Affiliation Data
Dr. Jeffrey Spencer Chen is affiliated with 2 sites of care and 3 medical groups
Dr. Chen's primary practice is St. Charles Bend in Bend, Oregon, part of St. Charles Health System. Dr. Chen is also affiliated with Salem Hospital. The medical group on file is St. Charles Health System. Dmand AI also links Dr. Chen to 2 more medical groups, each named with a free account. Dr. Chen's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jeffrey Spencer Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Charles Bend | Available with a free account |
| +1 more site and 2 medical groups | 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 St. Charles Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jeffrey Spencer Chen is one of 456 hospitalists in Oregon
Hospitalist is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Chen is licensed in Oregon.
Specialties and state licenses
- Hospitalist, OregonPrimary
Hospitalists near Dr. Chen
Counts of hospitalists 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 Spencer Chen billed Medicare for 660 services in 2024
CMS data shows 660 Medicare services from Dr. Chen across 4 procedure codes in 2024, for 226 Medicare patients. Medicare paid $57,151 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6562024: 6601%
Dr. Chen compared with the Oregon median for hospitalists, 2024
- Dr. Chen
- Oregon median
- Medicare services
- 660vs 2722.4 times
- Medicare patients
- 226vs 12679% above
- Part D claims
- 238vs 564.3 times
Medians across 454 hospitalists in Oregon with Dmand AI profiles that report each measure.
Dr. Chen'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.
Need commercial claims for Dr. Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other hospitalists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeffrey Spencer Chen treated 226 Medicare patients in 2024, average age 76
CMS counts 226 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 83 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.91, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 77, with 53% women.
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women9944%
- Men12756%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Ischemic heart disease46%
- Arthritis45%
- Heart failure45%
- Atrial fibrillation41%
- Diabetes41%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeffrey Spencer Chen wrote 561 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 561 Medicare Part D claims for 193 patients. 86% of them were for generic drugs. CMS names the drug for 238 of them, across 14 drugs with 11 or more claims each, at $8,756 in total drug cost. In 2023, CMS named 1,654 claims across 56 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic480 claims86%
- Brand-name and other81 claims14%
Dr. Chen'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. Chen's Part D claims, 2024
- Opioids7%39 of 561 claims
- Antibiotics11%62 of 561 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: 1,6542024: 23886%
Drugs named by CMS: 14 in 2024, 56 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
How Dr. Jeffrey Spencer Chen takes part in Medicare
Dr. Chen 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. Jeffrey Spencer Chen received $24 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Chen from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $24.
Companies that paid Dr. Chen the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jeffrey Spencer Chen'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 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) |
| 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. Jeffrey Spencer Chen
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 Spencer Chen's NPI number?
Dr. Jeffrey Spencer Chen's NPI number is 1578880845. It was assigned on April 27, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey Spencer Chen?
Dr. Jeffrey Spencer Chen is a hospitalist in Bend, Oregon. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Jeffrey Spencer Chen practice?
Dr. Chen practices at 2500 NE Neff Road, Bend, OR 97701. Dr. Chen's primary practice is St. Charles Bend in Bend, Oregon, part of St. Charles Health System. Dmand AI also links Dr. Chen to 2 medical groups.
What is Dr. Jeffrey Spencer Chen's office phone number?
The practice phone on file for Dr. Chen is (541) 382-4321.
What is Dr. Jeffrey Spencer Chen's medical license number?
Dr. Chen holds Oregon license MD163508.
Which hospitals is Dr. Jeffrey Spencer Chen affiliated with?
Dr. Chen practices at St. Charles Bend in Bend, Oregon. Dr. Chen is also affiliated with Salem Hospital.
What medical group is Dr. Jeffrey Spencer Chen part of?
Dr. Chen is linked to St. Charles Health System. Dmand AI links Dr. Chen to 2 more medical groups.
Does Dr. Jeffrey Spencer Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 660 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Jeffrey Spencer Chen see?
CMS counts 226 Medicare patients who saw Dr. Chen in 2024, with an average age of 76.
What services does Dr. Jeffrey Spencer Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).
Show 3 more questionsShow fewer questions
What drugs does Dr. Jeffrey Spencer Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Atorvastatin Calcium, Gabapentin and Amlodipine Besylate.
Has Dr. Jeffrey Spencer Chen received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Chen from 1 company from 2019 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Jeffrey Spencer Chen been practicing?
Dr. Chen graduated from medical school in 1998, 28 years ago.
Selling to hospitalist practices?
See hospitalists in Oregon 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