Mary Valenton, APRN
Family Nurse Practitioner · Greenwich, CT
Mary Valenton, APRN is a family nurse practitioner with a practice address in Greenwich, Connecticut, and NPI 1821640020, issued on Jul 9, 2019. Check the license (Connecticut 8316, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Valenton
- Credential
- APRN
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 8316 CT
91628 CT
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Putnam Ave, Greenwich, CT 06830
- Phone
- (203) 863-3000
- Enumerated
- Jul 9, 2019
- Record last updated
- Oct 3, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191022000814); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,669 in Connecticut → Look up another NPI →
Also registered at 500 W Putnam Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katie Atkinson, C-FNPFamily Nurse Practitioner1306079819
- Jennifer Barro, MDGastroenterology Physician1194841379
- Clifford Berken, M.D.Gastroenterology Physician1215951173
- Nelson Bonheim, MDGastroenterology Physician1366514549
- Jessica Dennison, RNPsychiatric/Mental Health Nurse Practitioner1023778537
- Caroline Figgie, MDPediatric Endocrinology Physician1902366420
Verify Mary Valenton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 8316Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% more Medicare Part D claims than the average family nurse practitioner in 2024
2,017 Medicare Part D claims for 673 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Eliquis302 claims
- Metoprolol Succinate168 claims
- Amlodipine Besylate128 claims
- Losartan Potassium118 claims
- Rosuvastatin Calcium106 claims
- Atorvastatin Calcium96 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): 73.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $64.27
2 payments; by number, the most common kind was food and beverage; the largest payer was Urogen Pharma, Inc. 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
- Yale UniversityGreenwich, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Valenton among 2,669 family nurse practitioner records in Connecticut
Mary Valenton, APRN is one of 2,669 family nurse practitioner records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 53% of them.
- NPI issued2019 · 53% of these records are older, 41% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2018 among the 1,664 with a school on file
- Record last updated2019 · 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 363LF0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 family nurse practitioner records list a practice address in Greenwich
They are 39 of the 1,184 NPPES records with a practice address in Greenwich, and 2,669 family nurse practitioner records in Connecticut.
All 2,669 in Connecticut → Every provider in Greenwich → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Katie Atkinson, C-FNPGreenwich, CT 068301306079819
- Alejandro Belistri, FNPGreenwich, CT 068301467921981
- Anne Brown, RN, FNP-BC, IBCLCGreenwich, CT 068301508031238
- Theresa Darnow, APRNGreenwich, CT 068301104961119
- Silvi George, NP-CGreenwich, CT 068301871871103
- Christine Higgins, DNP, CNM, FNP-CGreenwich, CT 068301982160123
- Jadwiga Kretowicz, RN, FNPGreenwich, CT 068301730581893
- Lisa Luehman, FNP-BC, NP-CGreenwich, CT 068301841653086
Common questions
What is Mary Valenton, APRN's NPI number?
Mary Valenton, APRN's National Provider Identifier (NPI) is 1821640020, issued on Jul 9, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mary Valenton, APRN located?
The NPPES record lists a practice address at 500 W Putnam Ave, Greenwich, CT, 06830. Phone: (203) 863-3000. Providers update this record themselves, so call before visiting.
How can I verify Mary Valenton, APRN's license?
NPPES lists Connecticut license number 8316, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Valenton, APRN prescribe under Medicare Part D?
In 2024, Mary Valenton, APRN had 2,017 Medicare Part D claims for 673 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Mary Valenton, APRN's MIPS final score?
The 2023 MIPS final score is 73.6 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.