NPPES file of Aug 9, 2026

Wendy Griswold, APRN

Family Nurse Practitioner · Portland, CT

Wendy Griswold, APRN is a family nurse practitioner with a practice address in Portland, Connecticut, and NPI 1639406184, issued on Nov 4, 2009. Check the license (Connecticut 004197, as entered in NPPES) with the Connecticut 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
1639406184
Name
Wendy Griswold
Credential
APRN
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
004197 CT
Self-reported in NPPES; status is on the state search
Practice location
270 Main St, Portland, CT 06480
Phone
(860) 342-3392
Enumerated
Nov 4, 2009
Record last updated
Apr 12, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(860) 358-8658
Medicaid ID
008014148 CT
Medicare enrollment
Enrolled (PECOS I20100128000029); 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 270 Main St

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

  1. Justin Caskey, DOFamily Medicine Physician1346536398
  2. Israel Cordero, MDFamily Medicine Physician1124281613
  3. Matthew NicholsFamily Medicine Physician1093028052
  4. Carly Odesina, APRNFamily Nurse Practitioner1548610959
  5. George Rosenfeld, MDFamily Medicine Physician1255369419
  6. Wendy Tagan Conroy, APRNFamily Nurse Practitioner1821119843

Verify Wendy Griswold in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 004197
    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 Connecticut license search

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2.4 times the Medicare Part D claims of the average family nurse practitioner in 2024

3,153 Medicare Part D claims for 253 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 33 claims were for opioids.

  1. Wendy Griswold3,153
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium326 claims
  2. Levothyroxine Sodium192 claims
  3. Lisinopril155 claims
  4. Amlodipine Besylate152 claims
  5. Rosuvastatin Calcium114 claims
  6. Metoprolol Succinate87 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 MIPS final score for 2023 (Medicare payment program): 97.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score81.7
  2. Costnot scored (reweighted)
  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; category weights for 2023 (qpp.cms.gov).

2 hospitals and group practices

  1. Middlesex HospitalMiddletown, CT · Acute Care Hospitals3 of 5 stars
  2. Mhs Primary Care, Inc.Portland, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

5 family nurse practitioner records list a practice address in Portland

They are 5 of the 83 NPPES records with a practice address in Portland, and 2,669 family nurse practitioner records in Connecticut.

Other family nurse practitioner records in Connecticut

  1. Anna Liza Abastillas, APRNSouthington, CT1063572014
  2. Renato Abastillas, APRNRocky Hill, CT1568795821
  3. Farhiya AbdiSouth Windsor, CT1609382027
  4. Maryam Abdishoo, NPPutnam, CT1275143778
  5. Anwar Abdulrehman, APRNWaterbury, CT1194614255
  6. Adey Abebe, APRNDanbury, CT1558914648
  7. Talita Acciari, APRNNew Haven, CT1275469777
  8. Denise AceStratford, CT1003572033
  9. Kwame Acheampong, NPStratford, CT1659975969
  10. Tara Ackerly, FNPDanbury, CT1831331602

Common questions

What is Wendy Griswold, APRN's NPI number?

Wendy Griswold, APRN's National Provider Identifier (NPI) is 1639406184, issued on Nov 4, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Wendy Griswold, APRN located?

The NPPES record lists a practice address at 270 Main St, Portland, CT, 06480. Phone: (860) 342-3392. Providers update this record themselves, so call before visiting.

How can I verify Wendy Griswold, APRN's license?

NPPES lists Connecticut license number 004197, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Wendy Griswold, APRN prescribe under Medicare Part D?

In 2024, Wendy Griswold, APRN had 3,153 Medicare Part D claims for 253 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Wendy Griswold, APRN's MIPS final score?

The 2023 MIPS final score is 97.3 of 100. 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.