OrganizationActive
Mark Day, D.O., Inc
NPI 1023325529 · Family Medicine Physician · Henderson, NV
Mark Day, D.O., Inc is a Family Medicine Physician organization in Henderson, NV (NPI 1023325529).
Provider details
- NPI number
- 1023325529
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Day, Owner/President(702) 456-9100
- License
- 656 (NV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(83/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
56 N Pecos Rd Ste a
Henderson, NV 89074-7332
Phone: (702) 456-9100
Fax: (702) 434-7354
Street-level locationGet directions
Mailing address
56 N Pecos Rd Ste a
Henderson, NV 89074-7332
Registry dates
- Enumerated
- 2010-09-03
- Last updated
- 2010-09-23
Frequently asked questions
- What is Mark Day, D.O., Inc's NPI number?
- Mark Day, D.O., Inc's National Provider Identifier (NPI) is 1023325529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark Day, D.O., Inc?
- Mark Day, D.O., Inc is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Day, D.O., Inc located?
- Mark Day, D.O., Inc's practice location on file with NPPES is 56 N Pecos Rd Ste a, Henderson, NV 89074-7332.
- What is Mark Day, D.O., Inc's phone number?
- The practice phone number listed in the NPPES registry for Mark Day, D.O., Inc is (702) 456-9100.
- Who is the authorized official for Mark Day, D.O., Inc?
- The authorized official listed on Mark Day, D.O., Inc's NPPES record is Mark Day, Owner/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark Day, D.O., Inc's NPI active?
- Yes — Mark Day, D.O., Inc's NPI (1023325529) is active in the NPPES registry as of the last update on 2010-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.