Stephen K. Liao M.D. PC
NPI 1992751010 · Internal Medicine Physician · Tucson, AZ
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen K. Liao M.D. PC is a Internal Medicine Physician organization in Tucson, AZ (NPI 1992751010).
Provider details
- NPI number
- 1992751010
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Stephen Liao, President(520) 544-5178
- License
- 24064 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
100% 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
Mailing address
Registry dates
- Enumerated
- 2006-05-26
- Last updated
- 2007-12-03
Frequently asked questions
- What is Stephen K. Liao M.D. PC's NPI number?
- Stephen K. Liao M.D. PC's National Provider Identifier (NPI) is 1992751010, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stephen K. Liao M.D. PC?
- Stephen K. Liao M.D. PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen K. Liao M.D. PC located?
- Stephen K. Liao M.D. PC's practice location on file with NPPES is 2181 W Orange Grove Rd, Tucson, AZ 85741-3118.
- What is Stephen K. Liao M.D. PC's phone number?
- The practice phone number listed in the NPPES registry for Stephen K. Liao M.D. PC is (520) 575-5766.
- Does Stephen K. Liao M.D. PC accept Medicare?
- Stephen K. Liao M.D. PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Stephen K. Liao M.D. PC?
- The authorized official listed on Stephen K. Liao M.D. PC's NPPES record is Stephen Liao, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stephen K. Liao M.D. PC's NPI active?
- Yes — Stephen K. Liao M.D. PC's NPI (1992751010) is active in the NPPES registry as of the last update on 2007-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.