NPPES file of Aug 9, 2026

Alison H. Massey, MS, RD, CDCES

Registered Dietitian · Prince Frederick, MD

Alison H. Massey, MS, RD, CDCES is a registered dietitian with a practice address in Prince Frederick, Maryland, and NPI 1649502451, issued on Feb 3, 2010. Check the license (Maryland DX3059, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649502451
Name
Alison H. Massey
Credential
MS, RD, CDCES
Primary taxonomy
Registered Dietitian 133V00000X
License number
DX3059 MD
Self-reported in NPPES; status is on the state search
Practice location
985 Prince Frederick Blvd, Prince Frederick, MD 20678
Phone
(410) 535-2005
Enumerated
Feb 3, 2010
Record last updated
Jul 3, 2023
Fax
(410) 535-4850
Medicare enrollment
Enrolled (PECOS I20110125001053); 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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8 nearest registered dietitian records → All 1,124 in Maryland → Look up another NPI →

Also registered at 985 Prince Frederick Blvd

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

  1. Christy Burch, PA-CPhysician Assistant1548744725
  2. Mary Cho, DNP, NP-C, AE-CFamily Nurse Practitioner1326691916
  3. Brittanie Eggan, P.A.Physician Assistant1679859250
  4. Tiffany Gaines, CRNPGerontology Nurse Practitioner1881617587
  5. Brendan Glowacki, FNP-BC, CRNP-FAMILYFamily Nurse Practitioner1871148973
  6. Alexander GrahamPhysician Assistant1720815764

Verify Alison H. Massey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license DX3059    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 Maryland 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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Bills Medicare through one group practice

  1. Calvert Internal Medicine Group, PADunkirk, MD

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

Alison H. Massey among 1,124 registered dietitian records in Maryland

Alison H. Massey, MS, RD, CDCES is one of 1,124 registered dietitian records with a practice address in Maryland. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 24% of them.

  • NPI issued2010 · 24% of these records are older, 73% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Graduated2007 · median 2015 among the 143 with a school on file
  • Record last updated2023 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 registered dietitian records list a practice address in Prince Frederick

They are 10 of the 663 NPPES records with a practice address in Prince Frederick, and 1,124 registered dietitian records in Maryland.

All 1,124 in Maryland → Every provider in Prince Frederick → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Katie Bolte, MS, RD, EP-CPrince Frederick, MD 206781023746369
  2. Jan Dubinsky, MS, RDN, LDNPrince Frederick, MD 206781386424026
  3. Jessica Forney, RDPrince Frederick, MD 206781235019639
  4. Lauren Grierson, REGISTERED DIETITIANPrince Frederick, MD 206781407470123
  5. Amber Hamilton, RD, LD/NPrince Frederick, MD 206781669121190
  6. Janet McDonald, RD, LDNPrince Frederick, MD 206781265891329
  7. Karen Mohn, RD, LDNPrince Frederick, MD 206781134903024
  8. Lillian NugentPrince Frederick, MD 206781922830868

Common questions

What is Alison H. Massey, MS, RD, CDCES's NPI number?

Alison H. Massey, MS, RD, CDCES's National Provider Identifier (NPI) is 1649502451, issued on Feb 3, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Alison H. Massey, MS, RD, CDCES located?

The NPPES record lists a practice address at 985 Prince Frederick Blvd, Prince Frederick, MD, 20678. Phone: (410) 535-2005. Providers update this record themselves, so call before visiting.

How can I verify Alison H. Massey, MS, RD, CDCES's license?

NPPES lists Maryland license number DX3059, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.