NPPES file of Aug 9, 2026

Emily Jeanne Massey, M.D.

Emergency Medicine Physician · Dover, DE

Emily Jeanne Massey, M.D. is an emergency medicine physician with a practice address in Dover, Delaware, and NPI 1912986936, issued on Jan 10, 2006. Check the license (Delaware C10006945, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; 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
1912986936
Name
Emily Jeanne Massey
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
C10006945 DE
Self-reported in NPPES; status is on the state search
Practice location
640 S State St, Dover, DE 19901
Phone
(302) 744-6156
Enumerated
Jan 10, 2006
Record last updated
Feb 13, 2023
Fax
(302) 735-3845
Medicare enrollment
Enrolled (PECOS I20040325001594); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2000
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 640 S State St

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

  1. Kelly Abbrescia, DOEmergency Medicine Physician1992740625
  2. Sarah Abdallah, MDStudent in an Organized Health Care Education/Training Program1265374789
  3. Joseph Raphael Ablaza, M.D.Internal Medicine Physician1366892291
  4. Anastazia Acevedo, PA-CPhysician Assistant1831495282
  5. Aashish AcharyaInternal Medicine Physician1912523424
  6. Denita Adams, CRNACertified Registered Nurse Anesthetist1427233964

Verify Emily Jeanne Massey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C10006945
    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
Open the Delaware 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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3.0 times the Medicare Part D claims of the average emergency medicine physician in 2024

674 Medicare Part D claims for 465 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 38 claims were for opioids.

  1. Emily Massey674
  2. Specialty average226

Most prescribed

  1. Methylprednisolone104 claims
  2. Cephalexin61 claims
  3. Nitrofurantoin Mono-Macro48 claims
  4. Amoxicillin-Clavulanate Potass40 claims
  5. Cyclobenzaprine Hcl38 claims
  6. Doxycycline Hyclate36 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): 98 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 score88.5
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $23.54

1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Emily Massey$23.54
  2. Specialty average$953.79

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. Bayhealth Emergency Physicians LLCDover, DE

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

Emily Jeanne Massey among 243 emergency medicine physician records in Delaware

Emily Jeanne Massey, M.D. is one of 243 emergency medicine physician records with a practice address in Delaware. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 65% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2000 · median 2010 among the 123 with a school on file
  • Record last updated2023 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 emergency medicine physician records list a practice address in Dover

They are 59 of the 2,137 NPPES records with a practice address in Dover, and 243 emergency medicine physician records in Delaware.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Kelly Abbrescia, DODover, DE 199011992740625
  2. Andrew Aswegan, MDDover, DE 199011548227812
  3. Robert Baeder, D.O.Dover, DE 199011588799662
  4. Philliph Bialecki, M.D.Dover, DE 199011902884463
  5. Susan Brennan, D.O.Dover, DE 199011952328411
  6. Robert Fumento, MDDover, DE 199011740254002
  7. Rhonda Gill, M.D.Dover, DE 199011881611341
  8. John Gusdon, MDDover, DE 199011093874471

Common questions

What is Emily Jeanne Massey, M.D.'s NPI number?

Emily Jeanne Massey, M.D.'s National Provider Identifier (NPI) is 1912986936, issued on Jan 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Emily Jeanne Massey, M.D. located?

The NPPES record lists a practice address at 640 S State St, Dover, DE, 19901. Phone: (302) 744-6156. Providers update this record themselves, so call before visiting.

How can I verify Emily Jeanne Massey, M.D.'s license?

NPPES lists Delaware license number C10006945, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Emily Jeanne Massey, M.D. prescribe under Medicare Part D?

In 2024, Emily Jeanne Massey, M.D. had 674 Medicare Part D claims for 465 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Emily Jeanne Massey, M.D.'s MIPS final score?

The 2023 MIPS final score is 98 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.