Elena Eftimova Rittmeyer
Nurse Practitioner · Chelmsford, MA
Elena Eftimova Rittmeyer is a nurse practitioner with a practice address in Chelmsford, Massachusetts, and NPI 1306606595, issued on Mar 22, 2024. Check the license (Massachusetts RN265744, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elena Eftimova Rittmeyer
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN265744 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
- Mar 22, 2024
- Record last updated
- May 28, 2025
- Fax
- (978) 685-2572
- Medicare enrollment
- Enrolled (PECOS I20240604002069); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
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.
- Leanne Aguirre, NPFamily Nurse Practitioner1720741465
- Rachelle Archard, CNPAdult Health Nurse Practitioner1598400079
- Laura BauerNurse Practitioner1164078838
- Diana Bishop, NPNurse Practitioner1447954177
- Amanda Bonomo, FNP-BCFamily Nurse Practitioner1912623588
- Elnora Burton, ARNPFamily Nurse Practitioner1659694768
Verify Elena Eftimova Rittmeyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN265744Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average nurse practitioner in 2024
534 Medicare Part D claims for 103 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 67 claims were for opioids.
Most prescribed
- Oxycodone Hcl32 claims
- Amlodipine Besylate29 claims
- Furosemide26 claims
- Lorazepam23 claims
- Levothyroxine Sodium21 claims
- Tramadol Hcl18 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: $29.74
1 payment: food and beverage; the largest payer was Acadia Pharmaceuticals Inc. The 38,884 providers of this specialty with any payment received $791.64 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 2 group practices
- Lawrence General Community Medical Service PLLCChelmsford, MA
- New England Community Medical Services PLLCChelmsford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elena Eftimova Rittmeyer among 3,480 nurse practitioner records in Massachusetts
Elena Eftimova Rittmeyer is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 91% of them.
- NPI issued2024 · 91% of these records are older, 5% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2023 · median 2017 among the 1,963 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 nurse practitioner records list a practice address in Chelmsford
They are 17 of the 937 NPPES records with a practice address in Chelmsford, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Chelmsford → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Laura BauerChelmsford, MA 018241164078838
- Diana Bishop, NPChelmsford, MA 018241447954177
- Nicole Comeau, MSN, APRN, FNP-BCChelmsford, MA 018241487225009
- Brittany CzerwChelmsford, MA 018241528793783
- Praisey Joseph, N.P.Chelmsford, MA 018241083277420
- Elisabeth Lowney, NPChelmsford, MA 018241356392120
- Lelia Magoba, APRN, CNPChelmsford, MA 018241649670027
- Kathleen Muse, N.P.Chelmsford, MA 018241619415650
Common questions
What is Elena Eftimova Rittmeyer's NPI number?
Elena Eftimova Rittmeyer's National Provider Identifier (NPI) is 1306606595, issued on Mar 22, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Elena Eftimova Rittmeyer 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 Elena Eftimova Rittmeyer's license?
NPPES lists Massachusetts license number RN265744, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Elena Eftimova Rittmeyer prescribe under Medicare Part D?
In 2024, Elena Eftimova Rittmeyer had 534 Medicare Part D claims for 103 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.