Michael Manchang Siew, DDS, MD
Oral and Maxillofacial Surgery (Dentist) · Seattle, WA
Michael Manchang Siew, DDS, MD is an oral and maxillofacial surgery (dentist) with a practice address in Seattle, Washington, and NPI 1164959169, issued on May 22, 2017. Check the license (Washington 70011270, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Manchang Siew
- Credential
- DDS, MD
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License numbers
- 70011270 WA
37666 TX
Self-reported in NPPES; status is on the state search - Practice location
- 916 NE Ravenna Blvd Ste B, Seattle, WA 98115
- Phone
- (206) 525-6181
- Enumerated
- May 22, 2017
- Record last updated
- Jul 6, 2026
- Fax
- (206) 385-5820
- Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 199 in Washington → Look up another NPI →
Verify Michael Manchang Siew in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 70011270Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
43 Medicare Part D claims for 19 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $1,063.52
10 payments; by number, the most common kind was food and beverage; the largest payer was Medical Device Business Services, Inc. The 4,075 providers of this specialty with any payment received $1,077.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael Manchang Siew among 199 oral and maxillofacial surgery (dentist) records in Washington
Michael Manchang Siew, DDS, MD is one of 199 oral and maxillofacial surgery (dentist) records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 91% of them.
- NPI issued2017 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in Washington
There are 199 oral and maxillofacial surgery (dentist) records in Washington.
All 199 in Washington → Every provider in Seattle → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- Thomas Dodson, DMDSeattle, WA 981151629050653
- Darlene Chan, DDSSeattle, WA 981161093882185
- Christopher Conser, DDS, MDSeattle, WA 981161912526062
- Joshua Teh, DDSSeattle, WA 981091609167113
- Alan Deubner, DDSSeattle, WA 981081376653840
- Lisa Kinney, D.D.S.Seattle, WA 981081568572006
- Steven Doyle, DMDSeattle, WA 981071306176268
- Elizabeth Kutcipal, DDSSeattle, WA 981071538271309
Common questions
What is Michael Manchang Siew, DDS, MD's NPI number?
Michael Manchang Siew, DDS, MD's National Provider Identifier (NPI) is 1164959169, issued on May 22, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Michael Manchang Siew, DDS, MD located?
The NPPES record lists a practice address at 916 NE Ravenna Blvd Ste B, Seattle, WA, 98115. Phone: (206) 525-6181. Providers update this record themselves, so call before visiting.
How can I verify Michael Manchang Siew, DDS, MD's license?
NPPES lists Washington license number 70011270, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Manchang Siew, DDS, MD prescribe under Medicare Part D?
In 2024, Michael Manchang Siew, DDS, MD had 43 Medicare Part D claims for 19 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. Part D covers Medicare prescriptions only.
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.