What is Michael Siy's NPI number?

Michael Siy's National Provider Identifier (NPI) is 1255855904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Michael Siy's specialty?

Michael Siy is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).

Where is Michael Siy located?

Michael Siy's practice location on file with NPPES is 8955 Wood Rd, Bethesda, MD 20889-3037.

What is Michael Siy's phone number?

The practice phone number listed in the NPPES registry for Michael Siy is (559) 313-5858.

Is Michael Siy's NPI active?

Yes — Michael Siy's NPI (1255855904) is active in the NPPES registry as of the last update on 2024-08-01.

IndividualActive

Michael Siy, DDS

NPI 1255855904 · Periodontics · Bethesda, MD

Michael Siy, DDS is a Periodontics provider in Bethesda, MD (NPI 1255855904).

Provider details

NPI number: 1255855904
Entity type: Individual
Primary specialty: PeriodonticsDental Providers
Credential: DDS
Sex: Male
Sole proprietor: No
License: DDS101595 (CA)

Specialties & taxonomies

PeriodonticsPrimary1223P0300XLicense 12879938-9923 (UT)
Dental Providers
Dentist122300000XLicense DDS101595 (CA)
Dental Providers
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Detailed profile(79/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
8 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

8955 Wood Rd

Bethesda, MD 20889-3037

Phone: (559) 313-5858

Street-level locationGet directions

More MD providers

Mailing address

11800 Old Georgetown Rd Unit 1120

Rockville, MD 20852-2647

Additional practice locations (2)

Naval Hospital Camp Pendleton
200 Mercy Circle Box 555191
Camp Pendleton, CA 92055
Phone: (760) 719-3675
Bldg 6905 Harris Ave
Mcbh Kaneohe Bay
Kailua, HI 96863-3037
Phone: (559) 313-5858

Enumerated: 2017-08-02
Last updated: 2024-08-01
Certified: 2024-08-01

Frequently asked questions

What is Michael Siy's NPI number?: Michael Siy's National Provider Identifier (NPI) is 1255855904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Michael Siy's specialty?: Michael Siy is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
Where is Michael Siy located?: Michael Siy's practice location on file with NPPES is 8955 Wood Rd, Bethesda, MD 20889-3037.
What is Michael Siy's phone number?: The practice phone number listed in the NPPES registry for Michael Siy is (559) 313-5858.
Is Michael Siy's NPI active?: Yes — Michael Siy's NPI (1255855904) is active in the NPPES registry as of the last update on 2024-08-01.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.