Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Emir Barbaros Safak Guven, MD

Individual provider Internal Medicine Physician · NPI 1366493181

Dr. Emir Barbaros Safak Guven, MD practises Endocrinology in Greenbrae, California. Qualified in 1989, 37 years ago. Practices with The Duluth Clinic Ltd, a 1,127-clinician group, works from 5 locations, accepts Medicare assignment and offers telehealth. Licensed in California, Nevada, Washington and Wisconsin.

Years since qualifying
37
Licensed in
CA, NV, WA, WI
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

900 S Eliseo Dr Ste 201
Greenbrae, CA 94904-2153
Phone: (415) 461-1780
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 5 Good Samaritan Way, Mount Vernon, IL 62864-2402 — (618) 899-1264
  • 229 N Pecos Rd, Henderson, NV 89074-7364 — (702) 605-5750
  • 1400 E Kincaid St, Mount Vernon, WA 98274-4127 — (360) 814-6315
  • 105 W 8th Ave Ste 7010, Spokane, WA 99204-2312 — (509) 353-3901

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A86174 (CA)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 12601 (NV)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence MD61232874 (WA)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 33942 (WI)

Record details

NPI number1366493181
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 15, 2006
Last updated in NPPESSeptember 30, 2026
Certification dateSeptember 30, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice The Duluth Clinic Ltd — 1127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients221
Services billed 360 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $853 25 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Essentia Health Deer River Hospital · Deer River, MN
  • Essentia Health Duluth Hospital · Duluth, MN

Colleagues at The Duluth Clinic Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1127 clinicians in the practice; 12 are shown here.

Other providers in Greenbrae