Melissa Inez Mason, CRNP
Gerontology Nurse Practitioner · Baltimore, MD
Melissa Inez Mason, CRNP is a gerontology nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1912496068, issued on May 4, 2018. Check the license (Maryland R190975, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Melissa Inez Mason
- Credential
- CRNP
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- R190975 MD
Self-reported in NPPES; status is on the state search - Practice location
- 601 N Caroline St, Baltimore, MD 21287
- Phone
- (251) 401-4697
- Enumerated
- May 4, 2018
- Record last updated
- Nov 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181018001889); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 199 in Maryland → Look up another NPI →
Also registered at 601 N Caroline St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Melissa Inez Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R190975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
51 Medicare Part D claims for 15 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D.
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.
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).
Melissa Inez Mason among 199 gerontology nurse practitioner records in Maryland
Melissa Inez Mason, CRNP is one of 199 gerontology nurse practitioner records with a practice address in Maryland. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 47% of them.
- NPI issued2018 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2018 · median 2019 among the 98 with a school on file
- Record last updated2018 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Maryland
There are 199 gerontology nurse practitioner records in Maryland.
All 199 in Maryland → Every provider in Baltimore → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Courtney Beeckler, CRNPBaltimore, MD 212871376033472
- Laura Blanchfield, C.R.N.P.Baltimore, MD 212871861526766
- Karen Difilippo, CRNPBaltimore, MD 212871073850756
- Emile El GhandourBaltimore, MD 212871396462099
- Katherine Glotfelty, AGNP-CBaltimore, MD 212871689302572
- Brandon Raab, CRNPBaltimore, MD 212871346707239
- Cory Schulz, AGACNP-BCBaltimore, MD 212871427610328
- Victoria Sinibaldi, CRNPBaltimore, MD 212871093744369
Common questions
What is Melissa Inez Mason, CRNP's NPI number?
Melissa Inez Mason, CRNP's National Provider Identifier (NPI) is 1912496068, issued on May 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Melissa Inez Mason, CRNP located?
The NPPES record lists a practice address at 601 N Caroline St, Baltimore, MD, 21287. Phone: (251) 401-4697. Providers update this record themselves, so call before visiting.
How can I verify Melissa Inez Mason, CRNP's license?
NPPES lists Maryland license number R190975, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Melissa Inez Mason, CRNP prescribe under Medicare Part D?
In 2024, Melissa Inez Mason, CRNP had 51 Medicare Part D claims for 15 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. 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.