Active NPI
Marcus Guorui Tan, MD, FAAD, FRCPC
- MOHS-Micrographic Surgery Physician
- Renton, WA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- MOHS-Micrographic Surgery Physician
- License
- MD61647325
- Practice address
- 660 SW 39TH St Ste 150
Renton, WA 98057-4912 - Phone
- (425) 690-3483
- Fax
- (425) 690-9083
- NPI assigned
- Oct 31, 2022
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Dermatology Physician | 207N00000X | MD61647325 | WA | |
| Dermatology Physician | 207N00000X | T7371 | TX | |
| MOHS-Micrographic Surgery Physician | 207ND0101X | MD61647325 | WA | Primary |
Addresses
Primary practice location
660 SW 39TH St Ste 150
Renton, WA 98057-4912
Mailing address
660 SW 39TH St Ste 150
Renton, WA 98057-4912
Phone (425) 690-3483
Other practice location 1
3411 Homer St
Dallas, TX 75206-5813
Phone (214) 663-2163
Other practice location 2
2130 W Holcombe Blvd Fl 6
Houston, TX 77030-3306
Phone (713) 563-2772
Other practice location 3
1920 N Collins Blvd
Richardson, TX 75080-3525
Phone (972) 316-4555
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in WA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Micrographic Dermatologic Surgery (MDS)
- Education
- Other, 2017
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
660 SW 39TH St
Suite 150
Renton, WA 98057-4912
Phone (425) 690-3485
Hospital & facility affiliations
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Melanoma (skin cancer) excision | 119 |
| Removal of skin lesions | 1-10 |
| Removal of skin cancer | 451 |
| Removal or shaving of skin growth | 1-10 |
| Skin biopsy | 27 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| T7371 | TX | MD | Dermatology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Valley Medical Group-Renton | Current | Accepting new patients | |
| Dr Michael McGuiness, PA | Dermatology | Current | Accepting new patients |
| Public Hospital District #1 of King County | Past | Accepting new patients |
Locations
152 Brand
Ste 100
Murphy, TX 75094
Phone (214) 615-1735
6000 W Spring Creek Pkwy
Ste 200
Plano, TX 75024
1450 N Preston Rd
Ste 60
Prosper, TX 75078
1920 N Collins Blvd
Richardson, TX 75080
Phone (214) 575-8700
16850 SE 272nd St
Ste 100
Covington, WA 98042
Phone (253) 395-1971
660 SW 39th St
Ste 150
Renton, WA 98057
Phone (425) 690-3485
3600 Lind Ave SW
Ste 100
Renton, WA 98057
Interoperability endpoints
- mtan126508@direct.valleymed.org
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- General Acute Care Hospital
- Renton, WA
- NPI 1619209574
-
- Dermatology Physician
- Prosper, TX
- NPI 1396920823
-
- Rehabilitation Hospital Unit
- Renton, WA
- NPI 1811063308
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Renton, WA
- NPI 1649209230
-
- General Acute Care Hospital
- Renton, WA
- NPI 1619209574
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1667174400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1761868800000",
"number": "1639886575",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "660 SW 39TH ST STE 150",
"city": "RENTON",
"state": "WA",
"postal_code": "980574912",
"telephone_number": "425-690-3483",
"fax_number": "425-690-9083"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "660 SW 39TH ST STE 150",
"city": "RENTON",
"state": "WA",
"postal_code": "980574912",
"telephone_number": "425-690-3483",
"fax_number": "425-690-9083"
}
],
"practiceLocations": [
{
"address_1": "3411 Homer St",
"address_purpose": "LOCATION",
"city": "Dallas",
"state": "TX",
"postal_code": "752065813",
"country_code": "US",
"telephone_number": "214-663-2163",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "2130 W Holcombe Blvd Fl 6",
"address_purpose": "LOCATION",
"city": "Houston",
"state": "TX",
"postal_code": "770303306",
"country_code": "US",
"telephone_number": "713-563-2772",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1920 N Collins Blvd",
"address_purpose": "LOCATION",
"city": "Richardson",
"state": "TX",
"postal_code": "750803525",
"country_code": "US",
"telephone_number": "972-316-4555",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "TAN",
"first_name": "MARCUS",
"middle_name": "GUORUI",
"name_prefix": "Dr.",
"credential": "MD, FAAD, FRCPC",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2022-10-31",
"last_updated": "2025-10-31",
"certification_date": "2025-10-31",
"status": "A"
},
"taxonomies": [
{
"code": "207N00000X",
"taxonomy_group": "",
"desc": "Dermatology",
"state": "WA",
"license": "MD61647325",
"primary": false
},
{
"code": "207N00000X",
"taxonomy_group": "",
"desc": "Dermatology",
"state": "TX",
"license": "T7371",
"primary": false
},
{
"code": "207ND0101X",
"taxonomy_group": "",
"desc": "Dermatology, MOHS-Micrographic Surgery",
"state": "WA",
"license": "MD61647325",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Renton, WA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 31, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.