Dr. David Eric Sax, MD
- Medicare services, 2018
- 17
- Part D claims, 2024
- 272
- Industry payments
- $20
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 500 NE Multnomah St, Portland, OR 97232
- Practice phone
- Call (503) 813-2440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Foundation Health Plan of the Northwest
Portland, Oregon
Find Dr. Sax'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 Eric Sax is an internist in Portland, Oregon
Dr. Sax practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon.
Dr. Sax's NPI, 1427141548, was assigned on October 2, 2006. Dr. Sax graduated from Medical College of Wisconsin in 1995. Dr. Sax holds Oregon license OR MD22315.
- NPI
- 1427141548NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527148766
- NPI enumeration date
- October 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 813-2440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Eric Sax practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon
Dr. Sax's primary practice is Kaiser Foundation Health Plan of the Northwest, at 500 NE Multnomah St, Portland, OR 97232 in Multnomah County. The practice phone is (503) 813-2440.
- Kaiser Foundation Health Plan of the Northwest500 NE Multnomah St, Portland, OR 97232 · Multnomah CountyPhone(503) 813-2440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Eric Sax is affiliated with 2 sites of care and 1 medical group
Dr. Sax's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. The medical group on file is Kaiser Permanente Northwest. Dmand AI also links Dr. Sax to 1 more group practice or clinic, 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. David Eric Sax's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sax practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Foundation Health Plan of the Northwest | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Eric Sax is one of 1,680 internists in Oregon
Internal medicine is Dr. Sax's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sax is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
Internists near Dr. Sax
Counts of internists 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 Eric Sax billed Medicare for 17 services in 2018
CMS data shows 17 Medicare services from Dr. Sax across 1 procedure code in 2018, all of them office visits. Medicare paid $980 for them. Every service was in an office.
Dr. Sax's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 202018: 1715%
Dr. Sax compared with the Oregon median for internists, 2018
- Dr. Sax
- Oregon median
- Medicare services
- 17vs 30094% below
- Part D claims
- 45vs 22280% below
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Dr. Sax's most billed Medicare procedure codes, 2018
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. Sax?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sax and other internists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Eric Sax's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Sax's median patient age at 47, with 58% women.
Dr. Sax's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women58%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. David Eric Sax wrote 272 Medicare Part D claims in 2024
In 2024, Dr. Sax wrote 272 Medicare Part D claims for 134 patients. 78% of them were for generic drugs. CMS names the drug for 45 of them, across 3 drugs with 11 or more claims each, at $531 in total drug cost. In 2023, CMS named 156 claims across 8 drugs.
Dr. Sax's Part D claims by kind of drug, 2024
- Generic212 claims78%
- Brand-name and other60 claims22%
Dr. Sax'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. Sax's Part D claims, 2024
- Antibiotics8%21 of 272 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: 1562024: 4571%
Drugs named by CMS: 3 in 2024, 8 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. David Eric Sax takes part in Medicare
Dr. Sax 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)
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Dr. David Eric Sax received $20 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Sax from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $20.
Companies that paid Dr. Sax the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Eric Sax graduated from Medical College of Wisconsin
Dr. Sax graduated from Medical College of Wisconsin in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Eric Sax'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 Data |
| 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) |
| 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 Eric Sax
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What is Dr. David Eric Sax's NPI number?
Dr. David Eric Sax's NPI number is 1427141548. It was assigned on October 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Eric Sax?
Dr. David Eric Sax is an internist in Portland, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Eric Sax practice?
Dr. Sax practices at 500 NE Multnomah St, Portland, OR 97232. Dr. Sax's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. Dmand AI also links Dr. Sax to 1 group practice or clinic.
What is Dr. David Eric Sax's office phone number?
The practice phone on file for Dr. Sax is (503) 813-2440.
What is Dr. David Eric Sax's medical license number?
Dr. Sax holds Oregon license OR MD22315.
What medical group is Dr. David Eric Sax part of?
Dr. Sax is linked to Kaiser Permanente Northwest.
Does Dr. David Eric Sax accept Medicare?
Yes. CMS data shows Dr. Sax billed Medicare for 17 services in 2018, and Dr. Sax accepts Medicare assignment.
What services does Dr. David Eric Sax bill to Medicare?
In 2018, Dr. Sax's most billed Medicare services were office visit, established patient (99214).
Where did Dr. David Eric Sax go to medical school?
Dr. Sax graduated from Medical College of Wisconsin in 1995.
What drugs does Dr. David Eric Sax prescribe most?
In 2024 Medicare Part D data, Dr. Sax's most prescribed drugs by claims were Atorvastatin Calcium, Prednisone and Albuterol Sulfate Hfa.
Has Dr. David Eric Sax received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Sax from 1 company from 2017 to 2017. The largest total came from Allergan Inc.
How long has Dr. David Eric Sax been practicing?
Dr. Sax graduated from medical school in 1995, 31 years ago.
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