IndividualActive
Mary Osak, RD
NPI 1730799453 · Registered Dietitian · Royal Oak, MI
Mary Osak, RD is a Registered Dietitian provider in Royal Oak, MI (NPI 1730799453).
Provider details
- NPI number
- 1730799453
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 561868 (MI)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(64/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
3601 W 13 Mile Rd
Royal Oak, MI 48073-6712
Phone: (248) 898-6982
Street-level locationGet directions
Mailing address
4919 Davis Ct
Troy, MI 48085-4997
Registry dates
- Enumerated
- 2020-08-06
- Last updated
- 2020-08-06
- Certified
- 2020-08-06
Frequently asked questions
- What is Mary Osak's NPI number?
- Mary Osak's National Provider Identifier (NPI) is 1730799453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Osak's specialty?
- Mary Osak is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Mary Osak located?
- Mary Osak's practice location on file with NPPES is 3601 W 13 Mile Rd, Royal Oak, MI 48073-6712.
- What is Mary Osak's phone number?
- The practice phone number listed in the NPPES registry for Mary Osak is (248) 898-6982.
- Is Mary Osak's NPI active?
- Yes — Mary Osak's NPI (1730799453) is active in the NPPES registry as of the last update on 2020-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.