NPPES file of Aug 9, 2026

Christina K. Martin, NP

Acute Care Nurse Practitioner · Towson, MD

Christina K. Martin, NP is an acute care nurse practitioner with a practice address in Towson, Maryland, and NPI 1689605537, issued on Jul 6, 2006. Check the license (Maryland R167118, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689605537
Name
Christina K. Martin
Credential
NP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
R167118 MD
Self-reported in NPPES; status is on the state search
Practice location
6535 N Charles St, Towson, MD 21204
Phone
(410) 494-1662
Enumerated
Jul 6, 2006
Record last updated
Dec 7, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(410) 494-1718
Medicare enrollment
Enrolled (PECOS I20051014000563); 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 6535 N Charles St

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

  1. George Apostolides, M.D.Specialist1972570158
  2. Karen Boyle, M.D.Urology Physician1649237066
  3. Joanna Brandt, MDForensic Psychiatry Physician1760417158
  4. Victoria Crandell, L.C.P.C.Professional Counselor1730530700
  5. Brianna Garrold, LCPCProfessional Counselor1912459546
  6. Elaine Koukoulas, M.D.Psychiatry Physician1063505055

Verify Christina K. Martin 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 R167118
    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

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52% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

285 Medicare Part D claims for 118 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Christina Martin285
  2. Specialty average594

Most prescribed

  1. Metoprolol Succinate49 claims
  2. Carvedilol26 claims
  3. Atorvastatin Calcium23 claims
  4. Losartan Potassium22 claims
  5. Eliquis20 claims
  6. Amlodipine Besylate19 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.

Industry payments in 2024: $105.24

5 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 10,984 providers of this specialty with any payment received $647.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christina Martin$105.24
  2. Specialty average$647.94

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. University OF Maryland Baltimore Washington Heart Associates LLCGlen Burnie, MD

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

Christina K. Martin among 755 acute care nurse practitioner records in Maryland

Christina K. Martin, NP is one of 755 acute care nurse practitioner records with a practice address in Maryland. 79% 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 1% of them.

  • NPI issued2006 · 1% of these records are older, 95% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2004 · median 2017 among the 494 with a school on file
  • Record last updated2011 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in Maryland

There are 755 acute care nurse practitioner records in Maryland.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Deborah Baker, ACNPBaltimore, MD 212041477699452
  2. Cathleen Barenski, ACNPBaltimore, MD 212041477740397
  3. Elizabeth Brannan, MSN, RN, CRNP-ACUTETowson, MD 212041386870053
  4. Kimberly Griffin, CRNPTowson, MD 212041982943551
  5. Elizabeth Holderness, CRNPTowson, MD 212041447480348
  6. Ellen JoynerTowson, MD 212041508148768
  7. Zaius Marsalek, CRNPTowson, MD 212041326556291
  8. Carrie ParrottBaltimore, MD 212041376799197

Common questions

What is Christina K. Martin, NP's NPI number?

Christina K. Martin, NP's National Provider Identifier (NPI) is 1689605537, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christina K. Martin, NP located?

The NPPES record lists a practice address at 6535 N Charles St, Towson, MD, 21204. Phone: (410) 494-1662. Providers update this record themselves, so call before visiting.

How can I verify Christina K. Martin, NP's license?

NPPES lists Maryland license number R167118, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Christina K. Martin, NP prescribe under Medicare Part D?

In 2024, Christina K. Martin, NP had 285 Medicare Part D claims for 118 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions 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.

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.