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 27 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. Kelley Lewis, RNColumbia, MD 210461376935148
  2. Toya Lewis, RNColumbia, MD 210441326715822
  3. Melissa Lewis-Pringle, R.N.Columbia, MD 210461437494820
  4. Tammy Leydig, RNBaltimore, MD 212241841050689
  5. Ronald Liao, CRNAPerry Hall, MD 211281336820489
  6. Elena Libster, RNColumbia, MD 210441528575289
  7. Toni Lilly, RNGwynn Oak, MD 212071306655329
  8. Corinna LinPotomac, MD 208541447955224
  9. Haydee Linares, RNTakoma Park, MD 209121124401005
  10. Robert LindnerColumbia, MD 210461427457126
  11. Shelley Lindsay-Long, R.N.Columbia, MD 210461942597182
  12. Jewel LindseyBaltimore, MD 212301679490635
  13. Monica Linthicum, RNBaltimore, MD 212441396816484
  14. Kimberly LipkaColumbia, MD 210461376932939
  15. Michelle Lisenbee, RNSavage, MD 207631649805086
  16. Tiffany Livingston, BSN, RNColumbia, MD 210441891288544
  17. Mabeng LizetteLaurel, MD 207081285339879
  18. Catherine LloydColumbia, MD 210461740659689
  19. Carol Loeb, RNEllicott City, MD 210421730489402
  20. Allison LomonosovGlen Burnie, MD 210601821761073
  21. Karen Long, RNColumbia, MD 210461023309150
  22. Melissa Long, RNColumbia, MD 210461659767754
  23. Stacey Loomis, RNSalisbury, MD 218041689128118
  24. Frances Lopes, R.N.Towson, MD 212041194086447
  25. Alejandra LopezColumbia, MD 210461609251065
  26. Dorothy Lopez, RNFort Meade, MD 207551801959614
  27. Jennifer Lopez, RNSilver Spring, MD 209101104165364
  28. Maikel Lopez LabaenBaltimore, MD 212011780429860
  29. Sheila Lorimer, RN BSNColumbia, MD 210461952717225
  30. Michelle Lott, RNColumbia, MD 210441568138709
  31. Brandi Loughery Goodrich, RN IBCLCColumbia, MD 210441144737131
  32. Catherine Loverdi, RNColumbia, MD 210441376019729
  33. Keith LovinColumbia, MD 210461295694115
  34. Maria Lowery, RNColumbia, MD 210461427449008
  35. Jennifer Lowry, RN, BSNColumbia, MD 210461073991980
  36. Sonja Luchi, RNPrince Frederick, MD 206781902085780
  37. Doris Luck, RNBaltimore, MD 212201366808669
  38. Jennifer Luk, MSN, RNBaltimore, MD 212241043011372
  39. Ida Luma HaddisonSevern, MD 211441780523019
  40. Fredrick Lumumbah, RNBaltimore, MD 212391144151747
  41. Adela Lungu MedeirosGermantown, MD 208741356204945
  42. Nicole Luoto, RN, BSNColumbia, MD 210461396163994
  43. Amy Luther-Rockwell, R.N.Rockville, MD 208531922358704
  44. La Teka LynchBaltimore, MD 212301255177135
  45. Sandra Lynn, RNFrederick, MD 217011952235533
  46. Adrienne Mabee, R.N.Columbia, MD 210461427468529
  47. Samuel MachariaBel Air, MD 210151477431864
  48. Angelica Mackey, RNColumbia, MD 210461518266030
  49. Sheila Macklin, MD R189959Columbia, MD 210441861983322
  50. Karen Maddy, RN,CBaltimore, MD 212011922275353

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.