Dr. Warren L. Fein, MD
- Medicare services, 2024
- 87
- Medicare patients, 2024
- 47
- Part D claims, 2024
- 239
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2208 Nw Market St Ste 410 Suite 410, Seattle, WA 98107
- Practice phone
- Call (206) 320-3335
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Swedish Health Services - Primary Care - Seattle (NW Market St)
Primary care practice · Seattle, Washington
Find Dr. Fein'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. Warren L. Fein is an internist in Seattle, Washington
Dr. Fein practices at Swedish Health Services - Primary Care - Seattle (NW Market St) in Seattle, Washington.
Dr. Fein's NPI, 1659455376, was assigned on October 25, 2006. Dr. Fein graduated from University of Washington School of Medicine in 1985. Dr. Fein holds Washington license MD00025226.
- NPI
- 1659455376NPI Registry (opens in a new tab)
- NPI enumeration date
- October 25, 2006
- NPI status
- Active
- Practice phone
- (206) 320-3335
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Warren L. Fein practices at 2 locations in Seattle, Washington
Dr. Fein's primary practice is Swedish Health Services - Primary Care - Seattle (NW Market St), at 2208 Nw Market St Ste 410 Suite 410, Seattle, WA 98107. The practice phone is (206) 320-3335. The NPI Registry lists Dr. Fein's practice address as 3400 California SW Ave, Seattle, WA 98116.
- Swedish Health Services - Primary Care - Seattle (NW Market St)Primary2208 Nw Market St Ste 410 Suite 410, Seattle, WA 98107Phone(206) 320-3335
- NPI Registry address3400 California SW Ave, Seattle, WA 98116 · King CountyPhone(206) 320-3335
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Warren L. Fein is affiliated with 1 site of care and 1 medical group
Dr. Fein's primary practice is Swedish Health Services - Primary Care - Seattle (NW Market St) in Seattle, Washington. The medical group on file is Swedish Physicians Downtown.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Warren L. Fein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fein practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Swedish Health Services - Primary Care - Seattle (NW Market St) | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Warren L. Fein is one of 2,689 internists in Washington
Internal medicine is Dr. Fein's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fein is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Dr. Fein
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. Warren L. Fein billed Medicare for 87 services in 2024
CMS data shows 87 Medicare services from Dr. Fein across 3 procedure codes in 2024, for 47 Medicare patients. Medicare paid $3,505 for them. Every service was in an office.
Dr. Fein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1632024: 4672%
- Other services
- 2023: 242024: 4171%
Dr. Fein compared with the Washington median for internists, 2024
- Dr. Fein
- Washington median
- Medicare services
- 87vs 36476% below
- Medicare patients
- 47vs 16572% below
- Part D claims
- 63vs 18265% below
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Dr. Fein'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. Fein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fein and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Warren L. Fein treated 47 Medicare patients in 2024, average age 77
CMS counts 47 Medicare patients who saw Dr. Fein in 2024. The largest group is 65 to 74, with 20 patients. 72% of them have high blood pressure, and 70% have high cholesterol. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fein's median patient age at 63, with 58% women.
Dr. Fein's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fein's Medicare patients by sex, 2024
- Women3472%
- Men1328%
Chronic conditions among Dr. Fein's Medicare patients, 2024
- High blood pressure72%
- High cholesterol70%
- Arthritis43%
- Chronic kidney disease30%
- Atrial fibrillation28%
- Osteoporosis26%
- Cancer23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Warren L. Fein wrote 239 Medicare Part D claims in 2024
In 2024, Dr. Fein wrote 239 Medicare Part D claims for 76 patients. 92% of them were for generic drugs. CMS names the drug for 63 of them, across 4 drugs with 11 or more claims each, at $1,032 in total drug cost. In 2023, CMS named 107 claims across 7 drugs.
Dr. Fein's Part D claims by kind of drug, 2024
- Generic219 claims92%
- Brand-name and other20 claims8%
Dr. Fein'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1072024: 6341%
Drugs named by CMS: 4 in 2024, 7 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
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. Warren L. Fein graduated from University of Washington School of Medicine
Dr. Fein graduated from University of Washington School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Warren L. Fein'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| 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. Warren L. Fein
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. Warren L. Fein's NPI number?
Dr. Warren L. Fein's NPI number is 1659455376. It was assigned on October 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Warren L. Fein?
Dr. Warren L. Fein is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Warren L. Fein practice?
Dr. Fein practices at 2208 Nw Market St Ste 410 Suite 410, Seattle, WA 98107. Dr. Fein also practices at 3400 California SW Ave, Seattle, WA 98116. Dr. Fein's primary practice is Swedish Health Services - Primary Care - Seattle (NW Market St) in Seattle, Washington.
What is Dr. Warren L. Fein's office phone number?
The practice phone on file for Dr. Fein is (206) 320-3335.
What is Dr. Warren L. Fein's medical license number?
Dr. Fein holds Washington license MD00025226.
What medical group is Dr. Warren L. Fein part of?
Dr. Fein is linked to Swedish Physicians Downtown.
Does Dr. Warren L. Fein accept Medicare?
Yes. CMS data shows Dr. Fein billed Medicare for 87 services in 2024.
How many Medicare patients does Dr. Warren L. Fein see?
CMS counts 47 Medicare patients who saw Dr. Fein in 2024, with an average age of 77.
What services does Dr. Warren L. Fein bill to Medicare?
In 2024, Dr. Fein's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Warren L. Fein go to medical school?
Dr. Fein graduated from University of Washington School of Medicine in 1985.
What drugs does Dr. Warren L. Fein prescribe most?
In 2024 Medicare Part D data, Dr. Fein's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metoprolol Succinate.
How long has Dr. Warren L. Fein been practicing?
Dr. Fein graduated from medical school in 1985, 41 years ago.
Selling to internal medicine practices?
See internists in Washington 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