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Mark Sienko MD in Sequim, Washington

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Mark Sienko MD has Medical Oncology as his primary medical specialty. Their primary office is: 844 N 5th Ave in Sequim, Washington.

They're a part of the: Olympic Medical Physicians medical group which has around 112 members. You can call their office at 360-683-9895 to schedule an appointment. They also accept the Medicare-approved amount as payment in full. They attended Sorry, his university is not listed and graduated in 1989 (around 35 years of experience). They are not listed as doing telehealth appointments, but this may have changed. It can't hurt to call and check. If anything it may encourage them to make them available if they are not currently.


Mark Edward Sienko MD Office Phone and Directions

Mark Sienko MD
Olympic Medical Physicians
844 N 5th Ave
Sequim, Washington 98382
360-683-9895


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Phone: 360-683-9895


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Healthcare Info for Mark Sienko MD

Medical School: Sorry, his university is not listed
Graduation Year: 1989
The Primary Medical Specialty for Mark Sienko MD is listed as: Medical Oncology
Credentials: MD
Additional Credentials:
Approximate Years of Experience: 35
PAC (PECOS ID)#: 7618910811
NPI #: 1932146552
NPI Created On: 06/01/2006
NPI Last Updated Listed as: 02/26/2020
Primary Taxonomy Code: 207RX0202X
License Number:
MD00046621
Listed Gender: Male

Insurance, Services, Charges


Forms of insurance accepted by include, but are not limited to:

  • Humana
  • PacificSource Health Plans
  • Medicare

They are listed as accepting new patients in some locations.

Languages spoken by staff include: English.


Services and Procedures include:

  1. Insertion of needle into vein for collection of blood sample
  2. Complete blood cell count (red cells, white blood cell, platelets), automated test
  3. Complete blood cell count (red cells, white blood cell, platelets), automated test
  4. New patient office or other outpatient visit, typically 60 minutes
  5. Established patient office or other outpatient visit, typically 15 minutes
  6. Established patient office or other outpatient, visit typically 25 minutes
  7. Established patient office or other outpatient, visit typically 40 minutes

They took part in Medicare's Electronic Health Record Incentive Program which was designed to help move people over to electronic records and improve the systems that were already in place.
They took part in the Medicare Physician Quality Reporting System (PQRS).

Open Payments Data. This can include items to test (Durable Medical Equipment (DME)), Biological, Drug Samples, etc. This data must be reported to CMS.


Payments Total: $19

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 792814781

Being Disputed:: No

Product Related: Yes

Drug or Biological: Biological

Product Category #1: Oncology

Name of Drug #1: OPDIVO

Open Associated Drug #1: 0003-3774-12


Payments Total: $12

Number of Payments:: 1

Form of Payment: In-kind items and services

Context of payment:: ;G2781634;EPRINTS;10797169

Record ID:: 845879329

Being Disputed:: No

Product Related: Yes


Payments Total: $14

Number of Payments:: 1

Form of Payment: In-kind items and services

Record ID:: 855382603

Being Disputed:: No

Product Related: Yes

Drug or Biological: Drug

Product Category #1: ONCOLOGY

Name of Drug #1: BELEODAQ

Open Associated Drug #1: 72893-002-01


Medical Oncology Professionals in Sequim

844 N 5th Ave
Sequim, WA
Olympic Medical Physicians

844 N 5th Ave
Sequim, WA
Olympic Medical Physicians

800 N 5th Ave
Sequim, WA
Olympic Medical Physicians

844 N 5th Ave
Sequim, WA
Olympic Medical Physicians

840 N 5th Ave
Sequim, WA
Olympic Medical Physicians

844 N 5th Ave
Sequim, WA
Olympic Medical Physicians

Providers in Olympic Medical Physicians

1.Charene Alderman Np

844 N 5th Ave
Sequim Wa 98382-3045
Olympic Medical Physicians
Nurse Practitioner

2.Rudo Ambayi

939 Caroline St
Port Angeles Wa 98362-3909
Olympic Medical Physicians
Hospitalist

3.Lee Baker

907 Georgiana St
Port Angeles Wa 98362-3911
Olympic Medical Physicians
Nurse Practitioner

4.Lee Baker

433 E 8th St
Port Angeles Wa 98362-6219
Olympic Medical Physicians
Nurse Practitioner

5.Lee Baker

800 N 5th Ave
Sequim Wa 98382-3045
Olympic Medical Physicians
Nurse Practitioner

6.Lee Baker

844 N 5th Ave
Sequim Wa 98382-3045
Olympic Medical Physicians
Nurse Practitioner

View all 112 members of Olympic Medical Physicians medical group