SONIA OKUYAMA SASAKI MD
NPI 1053520049
Internal Medicine - Hematology & Oncology in Denver, CO

Active since May 22, 2007PECOS EnrolledAccepts Medicare Assignment
91.11/100
CMS Quality Rating
700 DELAWARE ST, MC4001, DENVER, CO 80204(303) 602-6062 Get Directions Write a Review

NPPES record last updated: March 6, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Sonia Okuyama Sasaki Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SONIA OKUYAMA SASAKI MD (NPI 1053520049) is an individual hematology & oncology provider in Denver, Colorado, licensed in Colorado (49898) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1053520049
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameSONIA OKUYAMA SASAKICredential: MD
Location Address700 DELAWARE ST, MC4001Denver, CO 80204-4532
Mailing Address700 Delaware St, Mc4001Denver, CO 80204-4532 · (303) 602-6049
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateMay 22, 2007
Last NPPES UpdateMarch 6, 2021
NPPES CertifiedMarch 6, 2021
NPI 1053520049 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License Licensed in CO · 49898
Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License 49898 (CO)
700 DELAWARE ST, Denver, CO 80204

Other Identifiers 1

OtherBP1-0026159Institutional Permit

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Sonia Okuyama Sasaki Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466623939
PECOS Enrollment IDI20110914000577
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
47 services18 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
41 services27 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
34 services22 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
28 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80204 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$174.82 typical visit price
range $58.06 – $174.82
Typical copayment $43.70 (range $14.51 – $43.70)
Most-billed visit code 99205
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.11/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality90.23
Promoting Interoperability88
Improvement Activities40
Cost73.49

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
700 DELAWARE ST, 2ND FLOOR, NORTH TOWER
DENVER, CO 80204
Pharmacist
700 DELAWARE ST
DENVER, CO 80204
Social Worker (Clinical)
700 DELAWARE ST, MC 4001
DENVER, CO 80204
Technician/Technologist (Optician)
700 DELAWARE ST
DENVER, CO 80204
Pharmacist
700 DELAWARE ST
DENVER, CO 80204
Nurse Practitioner (Family)
700 DELAWARE ST
DENVER, CO 80204
Occupational Therapist (Hand)
700 DELAWARE ST
DENVER, CO 80204
Clinic/Center (Federally Qualified Health Center (FQHC))
700 DELAWARE ST
DENVER, CO 80204

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sonia Okuyama Sasaki's NPI number?

The NPI number for Sonia Okuyama Sasaki is 1053520049. It was assigned to this individual provider in the NPPES registry on May 22, 2007.

Where is Sonia Okuyama Sasaki located?

Sonia Okuyama Sasaki practices at 700 Delaware St Mc4001, Denver, CO 80204. The listed phone number is (303) 602-6062.

What is Sonia Okuyama Sasaki's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Sonia Okuyama Sasaki enrolled in Medicare?

Yes. Sonia Okuyama Sasaki is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Sonia Okuyama Sasaki accept?

Health plans from UnitedHealthcare list Sonia Okuyama Sasaki as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sonia Okuyama Sasaki was last updated on March 6, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.