Marlene Ostby, D.D.S., M.S.
NPI 1104022607 · Orthodontics and Dentofacial Orthopedics Dentistry · Billings, MT
Marlene Ostby, D.D.S., M.S. is a Orthodontics and Dentofacial Orthopedics Dentistry provider in Billings, MT (NPI 1104022607).
Provider details
- NPI number
- 1104022607
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Credential
- D.D.S., M.S.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 21290 (TX)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
18 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$135 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-22
- Last updated
- 2011-06-06
Frequently asked questions
- What is Marlene Ostby's NPI number?
- Marlene Ostby's National Provider Identifier (NPI) is 1104022607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marlene Ostby's specialty?
- Marlene Ostby is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is Marlene Ostby located?
- Marlene Ostby's practice location on file with NPPES is 1701 Avenue E Ste a, Billings, MT 59102-2943.
- What is Marlene Ostby's phone number?
- The practice phone number listed in the NPPES registry for Marlene Ostby is (406) 259-6774.
- Is Marlene Ostby's NPI active?
- Yes — Marlene Ostby's NPI (1104022607) is active in the NPPES registry as of the last update on 2011-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.