Mariah K. Rittwage, PA-C
Medical Physician Assistant · Hornell, NY
Mariah K. Rittwage, PA-C is a medical physician assistant with a practice address in Hornell, New York, and NPI 1073996930, issued on Jul 9, 2015. Check the license (New York 021892, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mariah K. Rittwage
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- 021892 NY
21892 NY
Self-reported in NPPES; status is on the state search - Practice location
- 111 Loder St Ste A, Hornell, NY 14843
- Phone
- (607) 324-5404
- Enumerated
- Jul 9, 2015
- Record last updated
- Jul 3, 2023
- Fax
- (607) 324-5463
- Medicare enrollment
- Enrolled (PECOS I20180418002230); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,670 in New York → Look up another NPI →
Also registered at 111 Loder St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Heather Cox, FNPFamily Nurse Practitioner1073820171
- Jessica Hogle, PA-CMedical Physician Assistant1306448295
Verify Mariah K. Rittwage in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 021892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average medical physician assistant in 2024
427 Medicare Part D claims for 164 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 63 claims were for opioids.
Most prescribed
- Ibuprofen110 claims
- Meloxicam93 claims
- Oxycodone Hcl41 claims
- Naproxen40 claims
- Diclofenac Sodium26 claims
- Methylprednisolone22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $52.61
2 payments; by number, the most common kind was food and beverage; the largest payer was Advanced Oxygen Therapy Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- St James HospitalHornell, NY · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mariah K. Rittwage among 3,670 medical physician assistant records in New York
Mariah K. Rittwage, PA-C is one of 3,670 medical physician assistant records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 60% of them.
- NPI issued2015 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2015 · median 2014 among the 1,802 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 medical physician assistant records list a practice address in Hornell
They are 5 of the 270 NPPES records with a practice address in Hornell, and 3,670 medical physician assistant records in New York.
All 3,670 in New York → Every provider in Hornell → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Giacomo Florio, RPA-CHornell, NY 148431336378264
- Jessica Hogle, PA-CHornell, NY 148431306448295
- Shannon Kaempffe, PHYSICIAN ASSISTANTHornell, NY 148431194379248
- Alicia McHale, PAHornell, NY 148431609285469
- Mary Bucknam, P.A.Ithaca, NY 148501104906726
- Rachel Cunningham, PAIthaca, NY 148501376018077
- Erikamae Dimagiba, PAIthaca, NY 148501316763345
- Shion Donahue, PA-CIthaca, NY 148501740675586
Common questions
What is Mariah K. Rittwage, PA-C's NPI number?
Mariah K. Rittwage, PA-C's National Provider Identifier (NPI) is 1073996930, issued on Jul 9, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mariah K. Rittwage, PA-C located?
The NPPES record lists a practice address at 111 Loder St Ste A, Hornell, NY, 14843. Phone: (607) 324-5404. Providers update this record themselves, so call before visiting.
How can I verify Mariah K. Rittwage, PA-C's license?
NPPES lists New York license number 021892, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Mariah K. Rittwage, PA-C prescribe under Medicare Part D?
In 2024, Mariah K. Rittwage, PA-C had 427 Medicare Part D claims for 164 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
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.