NPPES file of Aug 9, 2026

Carrie A. Rys, NP

Adult Health Nurse Practitioner · Chelmsford, MA

Carrie A. Rys, NP is an adult health nurse practitioner with a practice address in Chelmsford, Massachusetts, and NPI 1205123122, issued on Jun 29, 2011. Check the license (Massachusetts RN2258311, as entered in NPPES) with the Massachusetts 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1205123122
Name
Carrie A. Rys
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
RN2258311 MA
Self-reported in NPPES; status is on the state search
Practice location
290 Littleton RD Unit 3, Chelmsford, MA 01824
Phone
(978) 685-2460
Enumerated
Jun 29, 2011
Record last updated
May 28, 2025
Medicare enrollment
Enrolled (PECOS I20110901000686); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 290 Littleton RD Unit 3

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

  1. Leanne Aguirre, NPFamily Nurse Practitioner1720741465
  2. Rachelle Archard, CNPAdult Health Nurse Practitioner1598400079
  3. Laura BauerNurse Practitioner1164078838
  4. Diana Bishop, NPNurse Practitioner1447954177
  5. Amanda Bonomo, FNP-BCFamily Nurse Practitioner1912623588
  6. Elnora Burton, ARNPFamily Nurse Practitioner1659694768

Verify Carrie A. Rys in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2258311
    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 Massachusetts 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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21% more Medicare Part D claims than the average adult health nurse practitioner in 2024

1,543 Medicare Part D claims for 163 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 173 claims were for opioids.

  1. Carrie Rys1,543
  2. Specialty average1,280

Most prescribed

  1. Warfarin Sodium161 claims
  2. Lorazepam133 claims
  3. Oxycodone Hcl85 claims
  4. Trazodone Hcl61 claims
  5. Tramadol Hcl51 claims
  6. Furosemide35 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.

Bills Medicare through one group practice

  1. Berkshire Faculty Services IncGreat Barrington, MA

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

Carrie A. Rys among 1,465 adult health nurse practitioner records in Massachusetts

Carrie A. Rys, NP is one of 1,465 adult health nurse practitioner records with a practice address in Massachusetts. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 61% of them.

  • NPI issued2011 · 61% of these records are older, 35% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2010 · median 2010 among the 634 with a school on file
  • Record last updated2025 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 adult health nurse practitioner records list a practice address in Chelmsford

They are 11 of the 937 NPPES records with a practice address in Chelmsford, and 1,465 adult health nurse practitioner records in Massachusetts.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Rachelle Archard, CNPChelmsford, MA 018241598400079
  2. Nancy Bartleson, CNPChelmsford, MA 018241093796989
  3. Aisha Kamoga, NPChelmsford, MA 018241558025312
  4. Jeanine Marrocco, ANPChelmsford, MA 018241023002649
  5. Christine Medros, C.N.P.Chelmsford, MA 018241508937822
  6. Joy Osborne, NPChelmsford, MA 018241952542607
  7. Isabella Paiva-Gusmao, NPChelmsford, MA 018241528619657
  8. Marcelle Saurman, NPChelmsford, MA 018241003353012

Common questions

What is Carrie A. Rys, NP's NPI number?

Carrie A. Rys, NP's National Provider Identifier (NPI) is 1205123122, issued on Jun 29, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Carrie A. Rys, NP located?

The NPPES record lists a practice address at 290 Littleton RD Unit 3, Chelmsford, MA, 01824. Phone: (978) 685-2460. Providers update this record themselves, so call before visiting.

How can I verify Carrie A. Rys, NP's license?

NPPES lists Massachusetts license number RN2258311, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Carrie A. Rys, NP prescribe under Medicare Part D?

In 2024, Carrie A. Rys, NP had 1,543 Medicare Part D claims for 163 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.