Mariah Nicole Hartzell, MS, CCC-SLP
Speech-Language Pathologist · Norman, OK
Mariah Nicole Hartzell, MS, CCC-SLP is a speech-language pathologist with a practice address in Norman, Oklahoma, and NPI 1336665694, issued on Aug 18, 2017. Check the license (Oklahoma 5471, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mariah Nicole Hartzell
- Credential
- MS, CCC-SLP
- Primary taxonomy
- Speech-Language Pathologist 235Z00000X
- License number
- 5471 OK
Self-reported in NPPES; status is on the state search - Practice location
- 724 24TH Ave NW Ste 100, Norman, OK 73069
- Phone
- (405) 447-1571
- Enumerated
- Aug 18, 2017
- Record last updated
- Dec 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest speech-language pathologist records → All 2,454 in Oklahoma → Look up another NPI →
Also registered at 724 24TH Ave NW Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hannah Baird, OTR/LPediatric Occupational Therapist1992485106
- Emily Bigley, M.S., CCC-SLPSpeech-Language Pathologist1265739502
- Kimberly Blakley, SLP-INTERNSpeech-Language Pathologist1831853415
- Hailey Blevins, PT, DPT, ATCPhysical Therapist1457924383
- Brittnie Camper, BS, DPTPhysical Therapist1164106381
- Sarah Crooks, M.S., CFY-SLPSpeech-Language Pathologist1760901938
Verify Mariah Nicole Hartzell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 5471Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 91.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Mariah Nicole Hartzell among 2,454 speech-language pathologist records in Oklahoma
Mariah Nicole Hartzell, MS, CCC-SLP is one of 2,454 speech-language pathologist records with a practice address in Oklahoma. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 52% of them.
- NPI issued2017 · 52% of these records are older, 42% newer
- In a Medicare fileYes · 3% of these records are
- In the CMS Doctors and Clinicians fileNo · 4% of these records are
- Record last updated2020 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
122 speech-language pathologist records list a practice address in Norman
They are 122 of the 4,245 NPPES records with a practice address in Norman, and 2,454 speech-language pathologist records in Oklahoma.
All 2,454 in Oklahoma → Every provider in Norman → Speech-Language Pathologist nationwide →
The 8 speech-language pathologist records with the nearest ZIP codes
- Emily Bigley, M.S., CCC-SLPNorman, OK 730691265739502
- Susan Bruton-ShehadehNorman, OK 730691205267606
- Shelly Geddes, M.S.Norman, OK 730691659580512
- Synthia Haddad, MS CCC-SLPNorman, OK 730691265871214
- Jennifer Hendrix, MS, CCC-SLPNorman, OK 730691346457421
- Alyssa Hibbard, SLPNorman, OK 730691881776920
- Diane Holland, CCC-SLPNorman, OK 730691912267527
- Sarah Hunter, M.S. CCC-SLPNorman, OK 730691629430632
Common questions
What is Mariah Nicole Hartzell, MS, CCC-SLP's NPI number?
Mariah Nicole Hartzell, MS, CCC-SLP's National Provider Identifier (NPI) is 1336665694, issued on Aug 18, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mariah Nicole Hartzell, MS, CCC-SLP located?
The NPPES record lists a practice address at 724 24TH Ave NW Ste 100, Norman, OK, 73069. Phone: (405) 447-1571. Providers update this record themselves, so call before visiting.
How can I verify Mariah Nicole Hartzell, MS, CCC-SLP's license?
NPPES lists Oklahoma license number 5471, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
What is Mariah Nicole Hartzell, MS, CCC-SLP's MIPS final score?
The 2023 MIPS final score is 91.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.