NPPES file of Aug 9, 2026

Morris B. Chang, M.D.

Sleep Medicine (Psychiatry & Neurology) Physician · Issaquah, WA

Morris B. Chang, M.D. is a sleep medicine (psychiatry & neurology) physician with a practice address in Issaquah, Washington, and NPI 1164420428, issued on Jul 11, 2005. Check the license (Washington MD00036316, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164420428
Name
Morris B. Chang
Credential
M.D.
Primary taxonomy
Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
License number
MD00036316 WA
Self-reported in NPPES; status is on the state search
Practice location
751 NE Blakely Dr, Issaquah, WA 98029
Phone
(206) 386-4744
Enumerated
Jul 11, 2005
Record last updated
Jun 8, 2026
Fax
(206) 215-1135
Medicaid ID
8381014 WA
Medicare enrollment
Enrolled (PECOS I20050919000839); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 1992
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 751 NE Blakely Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chiazor Akusoba, M.D.Obstetrics & Gynecology Physician1104261064
  2. Chandra AllmendingerPharmacist1831470202
  3. Amy Anton, PA-CGastroenterology Physician1932121878
  4. Cheryl Axford-Lockhart, ARNPWomen's Health Nurse Practitioner1447259692
  5. Bella Charurat, PHARMDPharmacist1144528282
  6. Allison ColsonRegistered Dietitian1598025363

Verify Morris B. Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00036316
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

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85% fewer Medicare Part D claims than the average sleep medicine (psychiatry & neurology) physician in 2024

96 Medicare Part D claims for 29 beneficiaries, against an average of 655 among the 377 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Morris Chang96
  2. Specialty average655

Most prescribed

  1. Clonazepam20 claims
  2. Trazodone Hcl14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 82.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.1
  2. Costout of 100 · 30%60.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $160.03

5 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Respicardia, Inc. The 278 providers of this specialty with any payment received $5,572.43 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Morris Chang$160.03
  2. Specialty average$5,572.43

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Swedish Health ServicesSeattle, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Morris B. Chang among 30 sleep medicine (psychiatry & neurology) physician records in Washington

Morris B. Chang, M.D. is one of 30 sleep medicine (psychiatry & neurology) physician records with a practice address in Washington. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1992 · median 2002 among the 21 with a school on file
  • Record last updated2026 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084S0012X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Psychiatry & Neurology) Physician providers in Washington

There are 30 sleep medicine (psychiatry & neurology) physician records in Washington.

The 8 sleep medicine (psychiatry & neurology) physician records with the nearest ZIP codes

  1. Gandis Mazeika, M.D.Edmonds, WA 980261679518880
  2. Chris Chou, M.D.Kirkland, WA 980341164872651
  3. Zeyad Morcos, MDKirkland, WA 980341235115361
  4. Joel Younger, MDKirkland, WA 980341023088127
  5. Meredith Broderick, M.D.Bellevue, WA 980041578777355
  6. Stanley Chen, M.D.Bellevue, WA 980041447284849
  7. Randip Singh, M.D.Bellevue, WA 980041477569630
  8. Brandon Peters-Mathews, M.D.Seattle, WA 981011295907566

Common questions

What is Morris B. Chang, M.D.'s NPI number?

Morris B. Chang, M.D.'s National Provider Identifier (NPI) is 1164420428, issued on Jul 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Morris B. Chang, M.D. located?

The NPPES record lists a practice address at 751 NE Blakely Dr, Issaquah, WA, 98029. Phone: (206) 386-4744. Providers update this record themselves, so call before visiting.

How can I verify Morris B. Chang, M.D.'s license?

NPPES lists Washington license number MD00036316, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Morris B. Chang, M.D. prescribe under Medicare Part D?

In 2024, Morris B. Chang, M.D. had 96 Medicare Part D claims for 29 beneficiaries; the average among sleep medicine (psychiatry & neurology) physician prescribers was 655. Part D covers Medicare prescriptions only.

What is Morris B. Chang, M.D.'s MIPS final score?

The 2023 MIPS final score is 82.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.