NPPES file of Aug 9, 2026

Registered Nurse in Maryland

2,453 NPPES records list registered nurse with a practice address in Maryland, 40 per 100,000 residents, the 27th highest rate of 51. Columbia and Baltimore have the most; each record links to the provider's NPI and the Maryland license search. Page 29 of 50.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163W00000X · method

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

Columbia has the most, 783

  1. Columbia783
  2. Baltimore393
  3. Silver Spring86
  4. Bowie73
  5. Bethesda56

Registered Nurse records in Maryland

  1. Jeannine MasonColumbia, MD 210461093261083
  2. Rubina MasonColumbia, MD 210461093138570
  3. Anita Massengale, RN, BA, JDLaurel, MD 207071881349199
  4. Orlando Mastrap, RNBaltimore, MD 212241871910638
  5. Deborah MataninColumbia, MD 210461306276365
  6. Flore MateneSilver Spring, MD 209011225975501
  7. Marlina Mathi, RNBaltimore, MD 212011255950580
  8. Samantha Matteo, RN, CCRNBaltimore, MD 212011275379133
  9. Saundra MatthewsSilver Spring, MD 209101760853741
  10. Susan Matthews, RN, BSN, CCMBaltimore, MD 212141144585910
  11. Tiffany Matthews, RNColumbia, MD 210461770025249
  12. William Maurice, RNPasadena, MD 211221497428858
  13. Dianne MaustColumbia, MD 210461912378761
  14. Debra Maxwell, RNColumbia, MD 210461003152471
  15. Jennifer Mayhew, R.N.Columbia, MD 210461609266345
  16. Sarah Mayhew, R.N.Edgewater, MD 210371104046382
  17. Cathy Mays, RNOwings Mills, MD 211171407469042
  18. Joseph Mbong, BSN, RNMount Airy, MD 217711144819806
  19. Juliet Mbonu, DNP, RNBrookeville, MD 208331447868260
  20. Hannah MbuguBowie, MD 207161437028511
  21. Esther Mbugua, RNSilver Spring, MD 209061790492460
  22. Elizabeth McAbeeFallston, MD 210471770930513
  23. Joann McAfeeColumbia, MD 210461134558612
  24. Laverne McAllisterUpper Marlboro, MD 207721396188553
  25. Christine McArdle, RNBaltimore, MD 212231205692951
  26. Robin McBeathColumbia, MD 210461528405727
  27. Debora McCaffery, REGISTERED NURSEColumbia, MD 210441043778640
  28. Diane McCallaColumbia, MD 210441457829483
  29. Carol McCarra, RNBel Air, MD 210141457478869
  30. Eva McCarthy, R.N.Columbia, MD 210461346621372
  31. Sallyann McCarthy, RNFrederick, MD 217021841283579
  32. Tracey McCloskey, CRNPCharlotte Hall, MD 206221295724862
  33. Georgette McClymont, RNColumbia, MD 210461033487863
  34. Linda McCorkindale, RNColumbia, MD 210441942866454
  35. Patricia McCormickColumbia, MD 210461417310442
  36. Amy McCready, RNColumbia, MD 210461427463843
  37. Peggy McDonald, R.N.Waldorf, MD 206021467730549
  38. Marie McDonough, RNFrederick, MD 217021710106851
  39. Susan McDorman, RNTowson, MD 212041508454109
  40. Aimee McDowell, RNColumbia, MD 210441568952026
  41. Sumar McFarland-Yetta, RNColumbia, MD 210441790287779
  42. Ashley McGhee, RNTowson, MD 212041376301598
  43. Francis McGill, RNGaithersburg, MD 208781710779947
  44. Shawn McGill, RNSevern, MD 211441447784863
  45. Aisling McGuckin, APRN-BC, MSN, MPHBaltimore, MD 212071073755666
  46. Jessica McGuire, RNColumbia, MD 210441164908687
  47. Grace McKenzie, RN BSNColumbia, MD 210461114461035
  48. Urtha McKenzieUpper Marlboro, MD 207741144572926
  49. Diana McKevitt, RNColumbia, MD 210441972169183
  50. Jessica McKinney, RN, MSN, CCRNColumbia, MD 210441912492042

Source: CMS NPPES, primary taxonomy 163W00000X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 27 of 51 per resident

  1. Maine44
  2. Arizona42
  3. Pennsylvania41
  4. Maryland40
  5. Arkansas40
  6. Oklahoma36
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 163W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

2.0% of these records appear in a Medicare file, against 1.5% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Maryland2.0%
  2. United States1.5%

Registered Nurse records in Maryland, measured

  • In a Medicare file48 of 2,453 · 2.0% here, 1.5% nationally
  • In the CMS Doctors and Clinicians file36 · 1.5% here, 1.0% nationally
  • Not updated in five years or more1,607 · 65.5% here, 57.2% nationally
  • Median graduation year2022 · the 36 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,453 NPPES records list registered nurse (163W00000X) as their primary taxonomy with a practice address in Maryland: 40 per 100,000 residents against 44 nationally (50 states and D.C.). Columbia has 783 of them (32%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Oregon2,449
  2. Illinois2,628
  3. North Carolina2,100
  4. Arizona3,124

States with a similar rate per 100,000

  1. Arkansas39.6
  2. Pennsylvania41.4
  3. Oklahoma35.9
  4. Maine43.8

The largest states

  1. New York25,740
  2. California13,506
  3. Ohio9,656
  4. Texas8,921
  5. Washington5,708

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.