Aaron K. Mruk, FNP
Family Nurse Practitioner · Buffalo, NY
Aaron K. Mruk, FNP is a family nurse practitioner with a practice address in Buffalo, New York, and NPI 1215508213, issued on Jul 9, 2021. Check the license (New York 347814, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Aaron K. Mruk
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 347814 NY
Self-reported in NPPES; status is on the state search - Practice location
- 564 Niagara St Bldg 2, Buffalo, NY 14201
- Phone
- (716) 882-0366
- Enumerated
- Jul 9, 2021
- Record last updated
- Jul 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210825001851); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 14,805 in New York → Look up another NPI →
Also registered at 564 Niagara St Bldg 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deanna Gallicchio, MS, RD, CDNRegistered Dietitian1114486958
- Latasha Gardener, NURSE PRACTITIONERFamily Nurse Practitioner1104349117
- Jessie Molak, MSWMental Health Counselor1114500493
Verify Aaron K. Mruk 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 347814Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.8 times the Medicare Part D claims of the average family nurse practitioner in 2024
8,894 Medicare Part D claims for 476 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 450 claims were for opioids.
Most prescribed
- Gabapentin469 claims
- Atorvastatin Calcium438 claims
- Albuterol Sulfate Hfa431 claims
- Hydrocodone-Acetaminophen375 claims
- Amlodipine Besylate247 claims
- Omeprazole202 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: $1,693.50
87 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 99,489 providers of this specialty with any payment received $650.95 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.
Bills Medicare through one group practice
- Christopher E Beney MD PCLockport, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron K. Mruk among 14,805 family nurse practitioner records in New York
Aaron K. Mruk, FNP is one of 14,805 family nurse practitioner records with a practice address in New York. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 63% of them.
- NPI issued2021 · 63% of these records are older, 30% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2021 · median 2019 among the 7,239 with a school on file
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
391 family nurse practitioner records list a practice address in Buffalo
They are 391 of the 13,287 NPPES records with a practice address in Buffalo, and 14,805 family nurse practitioner records in New York.
All 14,805 in New York → Every provider in Buffalo → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Lovejeet AtwalBuffalo, NY 142011598315970
- Sarah Barclay, FNP-BCBuffalo, NY 142011114656865
- Tracie Barletta, FNP-BCBuffalo, NY 142011700202520
- Linda Berkoh-Asamoah, FNPBuffalo, NY 142011619592201
- Shondra Brown, FNPBuffalo, NY 142011114417094
- Nicole Candido, FNPBuffalo, NY 142011588920326
- Latasha Gardener, NURSE PRACTITIONERBuffalo, NY 142011104349117
- Chelsea HoehmanBuffalo, NY 142011750047874
Common questions
What is Aaron K. Mruk, FNP's NPI number?
Aaron K. Mruk, FNP's National Provider Identifier (NPI) is 1215508213, issued on Jul 9, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Aaron K. Mruk, FNP located?
The NPPES record lists a practice address at 564 Niagara St Bldg 2, Buffalo, NY, 14201. Phone: (716) 882-0366. Providers update this record themselves, so call before visiting.
How can I verify Aaron K. Mruk, FNP's license?
NPPES lists New York license number 347814, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Aaron K. Mruk, FNP prescribe under Medicare Part D?
In 2024, Aaron K. Mruk, FNP had 8,894 Medicare Part D claims for 476 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.