Dorene Marion Holcombe, C.R.N.P.
Nurse Practitioner · Baltimore, MD
Dorene Marion Holcombe, C.R.N.P. is a nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1215989884, issued on May 16, 2006. Check the license (Maryland R118883, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dorene Marion Holcombe
- Credential
- C.R.N.P.
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- R118883 MD
Self-reported in NPPES; status is on the state search - Practice location
- 600 N Wolfe St, Baltimore, MD 21287
- Phone
- (410) 955-9434
- Enumerated
- May 16, 2006
- Record last updated
- Mar 15, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 118802000 MD
- Medicare enrollment
- Enrolled (PECOS I20091208000283); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,248 in Maryland → Look up another NPI →
Also registered at 600 N Wolfe St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abdulrahman Abodarahim, MBBCHOphthalmology Physician1770182560
- Aida Abou-ZamzamStudent in an Organized Health Care Education/Training Program1891456034
- Mya AbousyStudent in an Organized Health Care Education/Training Program1700422169
- Christopher Abularrage, MDVascular Surgery Physician1063675908
- Sahaja Acharya, M.D.Radiation Oncology Physician1639436603
- Stephen Achuff, M.D.Cardiovascular Disease Physician1326001033
Verify Dorene Marion Holcombe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R118883Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average nurse practitioner in 2024
436 Medicare Part D claims for 57 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Sevelamer Carbonate115 claims
- Calcium Acetate69 claims
- Carvedilol41 claims
- Nifedipine Er28 claims
- Losartan Potassium24 claims
- Velphoro24 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): 74.4 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Johns Hopkins UniversityBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dorene Marion Holcombe among 1,248 nurse practitioner records in Maryland
Dorene Marion Holcombe, C.R.N.P. is one of 1,248 nurse practitioner records with a practice address in Maryland. 68% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 74% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated1997 · median 2018 among the 655 with a school on file
- Record last updated2010 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
366 nurse practitioner records list a practice address in Baltimore
They are 366 of the 35,183 NPPES records with a practice address in Baltimore, and 1,248 nurse practitioner records in Maryland.
All 1,248 in Maryland → Every provider in Baltimore → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Tracy Agee, ADULT NPBaltimore, MD 212871881657567
- Karla Alwood, C.R.N.P.Baltimore, MD 212871922063015
- Viki Anders, C.R.N.P.Baltimore, MD 212871194789461
- Barbara Biedrzycki, C.R.N.P.Baltimore, MD 212871275599904
- Margaret Birdsong, C.R.N.P.Baltimore, MD 212871881650562
- Sherilyn Brinkley, C.R.N.P.Baltimore, MD 212871487612099
- Jennifer Bucholtz, C.R.N.P.Baltimore, MD 212871548227713
- Kathleen Byrne, C.R.N.P.Baltimore, MD 212871215995667
Common questions
What is Dorene Marion Holcombe, C.R.N.P.'s NPI number?
Dorene Marion Holcombe, C.R.N.P.'s National Provider Identifier (NPI) is 1215989884, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dorene Marion Holcombe, C.R.N.P. located?
The NPPES record lists a practice address at 600 N Wolfe St, Baltimore, MD, 21287. Phone: (410) 955-9434. Providers update this record themselves, so call before visiting.
How can I verify Dorene Marion Holcombe, C.R.N.P.'s license?
NPPES lists Maryland license number R118883, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Dorene Marion Holcombe, C.R.N.P. prescribe under Medicare Part D?
In 2024, Dorene Marion Holcombe, C.R.N.P. had 436 Medicare Part D claims for 57 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Dorene Marion Holcombe, C.R.N.P.'s MIPS final score?
The 2023 MIPS final score is 74.4 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.