NPPES file of Aug 9, 2026

Marika Zarafyan Simmons, PA

Physician Assistant · Byram, MS

Marika Zarafyan Simmons, PA is a physician assistant with a practice address in Byram, Mississippi, and NPI 1154959526, issued on Mar 31, 2020. Check the license (Mississippi PA00510, as entered in NPPES) with the Mississippi board that licenses this profession; 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
1154959526
Name
Marika Zarafyan Simmons
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
PA00510 MS
Self-reported in NPPES; status is on the state search
Practice location
7275 S Siwell RD, Byram, MS 39272
Phone
(601) 373-7722
Enumerated
Mar 31, 2020
Record last updated
Jul 14, 2022
Fax
(601) 373-7378
Medicare enrollment
Enrolled (PECOS I20210514002109); accepts Medicare assignment
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 7275 S Siwell RD

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

  1. Pamela Bingham, P.A.Physician Assistant1427444116
  2. Lyndsey Carlton, NP-CFamily Nurse Practitioner1518369180
  3. Scott Davis, M.D.Family Medicine Physician1447405998
  4. Raven Ladner, M.D.Family Medicine Physician1740549781

Verify Marika Zarafyan Simmons in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
    Search for license PA00510
    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
Find the Mississippi 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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4.3 times the Medicare Part D claims of the average physician assistant in 2024

3,567 Medicare Part D claims for 444 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 85 claims were for opioids.

  1. Marika Simmons3,567
  2. Specialty average830

Most prescribed

  1. Amoxicillin-Clavulanate Potass106 claims
  2. Albuterol Sulfate Hfa99 claims
  3. Amlodipine Besylate99 claims
  4. Atorvastatin Calcium97 claims
  5. Meloxicam90 claims
  6. Potassium Chloride86 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): 71 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 score56.6
  2. Costout of 100 · 30%58.4
  3. Promoting interoperabilityout of 100 · 25%86.0
  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).

Industry payments in 2024: $237.54

14 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marika Simmons$237.54
  2. Specialty average$841.65

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

  1. Central Mississippi Medical Clinic PLLCVicksburg, MS

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

Marika Zarafyan Simmons among 338 physician assistant records in Mississippi

Marika Zarafyan Simmons, PA is one of 338 physician assistant records with a practice address in Mississippi. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 50% of them.

  • NPI issued2020 · 50% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2019 · median 2020 among the 223 with a school on file
  • Record last updated2022 · 31% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 physician assistant records list a practice address in Byram

They are 2 of the 138 NPPES records with a practice address in Byram, and 338 physician assistant records in Mississippi.

The 8 physician assistant records with the nearest ZIP codes

  1. Pamela Bingham, P.A.Byram, MS 392721427444116
  2. Mary Davis, PA-CMeridian, MS 393011902732621
  3. Dean Dickinson, PAMeridian, MS 393011528856960
  4. Jerrica DixonMeridian, MS 393011821935917
  5. Makenzie Ezell, PA-CMeridian, MS 393011073430013
  6. Amy Goodin, PA-CMeridian, MS 393011952569261
  7. Casey KerianMeridian, MS 393011982178562
  8. Cedric Ruffin, PAMeridian, MS 393011730628140

Common questions

What is Marika Zarafyan Simmons, PA's NPI number?

Marika Zarafyan Simmons, PA's National Provider Identifier (NPI) is 1154959526, issued on Mar 31, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Marika Zarafyan Simmons, PA located?

The NPPES record lists a practice address at 7275 S Siwell RD, Byram, MS, 39272. Phone: (601) 373-7722. Providers update this record themselves, so call before visiting.

How can I verify Marika Zarafyan Simmons, PA's license?

NPPES lists Mississippi license number PA00510, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.

How much does Marika Zarafyan Simmons, PA prescribe under Medicare Part D?

In 2024, Marika Zarafyan Simmons, PA had 3,567 Medicare Part D claims for 444 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Marika Zarafyan Simmons, PA's MIPS final score?

The 2023 MIPS final score is 71 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.