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Timothy Tan, M.D
NPI 1851348783 · Family Medicine Physician · Chicago, IL
Timothy Tan, M.D is a Family Medicine Physician provider in Chicago, IL (NPI 1851348783).
Provider details
- NPI number
- 1851348783
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
4947 N Winthrop Ave
Chicago, IL 60640-3607
Phone: (773) 989-9118
Street-level locationGet directions
Mailing address
766 Camelot Dr
Burr Ridge, IL 60527-6250
Registry dates
- Enumerated
- 2006-05-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Timothy Tan's NPI number?
- Timothy Tan's National Provider Identifier (NPI) is 1851348783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Tan's specialty?
- Timothy Tan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Tan located?
- Timothy Tan's practice location on file with NPPES is 4947 N Winthrop Ave, Chicago, IL 60640-3607.
- What is Timothy Tan's phone number?
- The practice phone number listed in the NPPES registry for Timothy Tan is (773) 989-9118.
- Is Timothy Tan's NPI active?
- Yes — Timothy Tan's NPI (1851348783) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.