NPI registry status
Active
2026 NPPES data Vascular Neurology Physician NPI 1619473535 MD
Verify on CMS → Kathryn Grimes, MD
Vascular Neurology Physician in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 561 in Vascular Neurology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
22
Medicare Part D claims · Vascular Neurology Physician avg: 378
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Kathryn Grimes, MD filed 22 Medicare Part D claims in 2023 as a Vascular Neurology Physician in Baltimore, Maryland.
- 22
- Part D claims, 2023
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Kathryn Grimes, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
22 0th percentile higher than 0% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Kathryn Grimes, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Kathryn Grimes, MD?
Quality data not reportedPrimary specialty
Vascular Neurology Physician
Medicare Part D claims
22 94% vs specialty avg
Specialty distribution in Maryland
How Vascular Neurology Physician compares to other specialties among Maryland providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Vascular Neurology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Kathryn Grimes, MD appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding MD credentials at 22 S GREENE ST, Baltimore, MD, 21201, with a listed phone of (410) 328-5803. NPI 1619473535 was issued on 03/30/2018.
Medicare Part D records for calendar year 2023 show 22 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $6K in drug spend.
Vascular Neurology Physician is a narrow specialty nationwide, with 561 enrolled providers across 49 states and an average of 378 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1619473535 |
|---|---|
| Specialty | Vascular Neurology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 03/30/2018 |
Hospital and facility affiliations
Facilities where Kathryn Grimes, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
University OF Maryland Neurology Associates PA
Baltimore, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
22
Total Claims
$6K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 42
- Total Day Supply
- 1,260
- Generic Drug Cost
- $415
Patient Demographics
- Average Patient Age
- 60.3 years
- Avg HCC Risk Score
- 1.98
Vascular Neurology Physician Overview
How Kathryn Grimes, MD fits within the Vascular Neurology Physician landscape nationally.
561
Vascular Neurology Physician Providers in US
49
States with Vascular Neurology Physician
378
Avg Claims per Provider
Kathryn Grimes, MD's 22 claims are below the specialty average of 378.
Nearby Vascular Neurology Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Grimes.
Mona Bahouth
Baltimore, MD
Dr. John Choi
MD
Bethesda, MD
Dr. Thomas Degraba
M.D.
Bethesda, MD
Dr. Bolanle Famakin
M.D.
Bethesda, MD
Dr. Ryan Felling
M.D., PH.D.
Baltimore, MD
Compare Vascular Neurology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Vascular Neurology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Maryland
Frequently Asked Questions
What is Kathryn Grimes, MD's specialty? ▼
Kathryn Grimes, MD specializes in Vascular Neurology Physician and practices in Baltimore, Maryland. Credentials: MD.
How much does Kathryn Grimes, MD prescribe under Medicare Part D? ▼
In 2023, Kathryn Grimes, MD wrote 22 Medicare Part D claims totaling $6K in drug costs for N/A beneficiaries.
Where is Kathryn Grimes, MD located? ▼
Kathryn Grimes, MD is located at 22 S GREENE ST, Baltimore, MD, 21201. Phone: (410) 328-5803.
What is Kathryn Grimes, MD's NPI number? ▼
Kathryn Grimes, MD's National Provider Identifier (NPI) is 1619473535, issued on 03/30/2018.
How many Vascular Neurology Physician providers are there in the US? ▼
There are 561 Vascular Neurology Physician providers across 49 states in the US. The average Vascular Neurology Physician provider writes 378 Medicare Part D claims per year.
Does Kathryn Grimes, MD accept Medicare? ▼
Kathryn Grimes, MD appears in CMS Medicare data with 22 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kathryn Grimes, MD's credentials? ▼
Kathryn Grimes, MD's NPI is 1619473535 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.