NPPES file of Aug 9, 2026

Matthew Scott Rybka, MD

Hospitalist Physician · Flagstaff, AZ

Matthew Scott Rybka, MD is a hospitalist physician with a practice address in Flagstaff, Arizona, and NPI 1518209964, issued on Mar 25, 2013. Check the license (Arizona 51828, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518209964
Name
Matthew Scott Rybka
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License number
51828 AZ
Self-reported in NPPES; status is on the state search
Practice location
1200 N Beaver St, Flagstaff, AZ 86001
Phone
(928) 214-2920
Enumerated
Mar 25, 2013
Record last updated
Mar 4, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(928) 214-2925
Medicaid ID
161458 AZ
Medicare enrollment
Enrolled (PECOS I20160912000730); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1200 N Beaver St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Melissa Acquaviva, CRNACertified Registered Nurse Anesthetist1639238348
  2. Michelle Aerni, D.O.Critical Care Medicine (Anesthesiology) Physician1225014822
  3. Amit Agrawal, M.D.Neonatal-Perinatal Medicine Physician1306032701
  4. Muhammad Ali, MDCritical Care Medicine (Internal Medicine) Physician1801264353
  5. Kim AllenSpeech-Language Pathologist1356580484
  6. Bianca Anderson, MS, RDRegistered Dietitian1548609431

Verify Matthew Scott Rybka in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 51828
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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59% fewer Medicare Part D claims than the average hospitalist physician in 2024

212 Medicare Part D claims for 92 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Matthew Rybka212
  2. Specialty average521

Most prescribed

  1. Clopidogrel14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 77 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score59.7
  2. Costout of 100 · 30%63.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Northern Arizona Healthcare CorporationFlagstaff, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew Scott Rybka among 775 hospitalist physician records in Arizona

Matthew Scott Rybka, MD is one of 775 hospitalist physician records with a practice address in Arizona. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 53% of them.

  • NPI issued2013 · 53% of these records are older, 43% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated2013 · median 2011 among the 618 with a school on file
  • Record last updated2021 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 hospitalist physician records list a practice address in Flagstaff

They are 31 of the 2,419 NPPES records with a practice address in Flagstaff, and 775 hospitalist physician records in Arizona.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Jairo Castrolondono, MDFlagstaff, AZ 860011730239310
  2. Matthew Dunn, MDFlagstaff, AZ 860011508068495
  3. Kathryn Feuquay, MDFlagstaff, AZ 860011689878530
  4. Derek Feuquay, M.D.Flagstaff, AZ 860011306040258
  5. Elizabeth Harding, M.D.Flagstaff, AZ 860011700871688
  6. Duane Lambert, MDFlagstaff, AZ 860011932137486
  7. Edward Markman, D.O.Flagstaff, AZ 860011033327119
  8. Matthew Rydberg, MDFlagstaff, AZ 860011649285446

Common questions

What is Matthew Scott Rybka, MD's NPI number?

Matthew Scott Rybka, MD's National Provider Identifier (NPI) is 1518209964, issued on Mar 25, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Scott Rybka, MD located?

The NPPES record lists a practice address at 1200 N Beaver St, Flagstaff, AZ, 86001. Phone: (928) 214-2920. Providers update this record themselves, so call before visiting.

How can I verify Matthew Scott Rybka, MD's license?

NPPES lists Arizona license number 51828, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Matthew Scott Rybka, MD prescribe under Medicare Part D?

In 2024, Matthew Scott Rybka, MD had 212 Medicare Part D claims for 92 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

What is Matthew Scott Rybka, MD's MIPS final score?

The 2023 MIPS final score is 77 of 100, reported for the practice group. 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.