NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1083137970 FNP
Verify on CMS → Dian Grandison, FNP
Family Medicine 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 147,760 in Family Medicine 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
30
Medicare Part D claims · Family Medicine Physician avg: 3K
Generic prescribing
47%
generic claims · 53% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.4/100
▼ 9 pts below national avg 83.5 · Mid-tier
Industry payments
$165.13
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Dian Grandison, FNP reported a CMS MIPS final score of 74.4/100 - below the 83.5 national average - and filed 30 Medicare Part D claims in 2023.
- 74.4/100
- MIPS score · -9 vs avg
- 30
- Part D claims, 2023
- 47%
- generic prescribing
- 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.
Federal trust snapshot
What official records show about Dian Grandison, FNP
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1083137970), first enumerated 07/21/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 30 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 74.4/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Industry payment transparency
$165.13 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1083137970 · Family Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-BELOW · RX-TRACE · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1083137970
- ENUM-RECENT 2017
- TAX-MEGA 148K Family Medicine
- MIPS-BELOW 74.4/100
- RX-TRACE 30
- BOOK-LIGHT 1,865 in Maryland
- PHOTO-FINISH Michael Mitchell · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Grandison · this…
Grandison · this provider
74.4 MIPS pts
- Jason Barnett · …
Jason Barnett
74.4 MIPS pts
- Michael Mitchell…
Michael Mitchell
74.4 MIPS pts
- Josie Lopez · near
Josie Lopez
74.4 MIPS pts
- Craig Buettner ·…
Craig Buettner
74.4 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Dian Grandison, FNP's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
74 ≥ 13th percentile 13% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Dian Grandison, FNP sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Dian Grandison, FNP writes more Part D claims than 2% of them and scores higher on MIPS quality than 15% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Dian Grandison, FNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Dian Grandison, FNP practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Dian Grandison, FNP?
Below national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
30 99% vs specialty avg
MIPS final score
74.4/100 9.1 pts vs avg
Specialty distribution in Maryland
How Family Medicine Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Dian Grandison, FNP's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 74.4/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1083137970 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 07/21/2017 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.3962
Final Score
Measured-score avg: 83.5
64.7185
Quality
52.4354
Cost
97
Promoting Interoperability
Reporting: Group practice
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Dian Grandison, FNP. Source: openpaymentsdata.cms.gov.
Total received
$165
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Brand-heavy
Dian Grandison, FNP - brand share 53.0%
Family Medicine Physician average
53% brand-name claims vs 47% generic, on 30 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
30
Total Claims
$15K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 30
- Total Day Supply
- 743
- Brand vs Generic
- 53% brand / 47% generic
- Brand Drug Cost
- $14K
- Generic Drug Cost
- $498
Patient Demographics
- Average Patient Age
- 57.0 years
- Avg HCC Risk Score
- 1.15
Family Medicine Physician Overview
How Dian Grandison, FNP fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Dian Grandison, FNP's 30 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Grandison, both outside Maryland so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (74.4 here).
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Grandison.
One of 1,865 Family Medicine Physician providers enrolled in Maryland, 5 are shown here.
Dr. Amelia Abban
CRNP-BC
Laurel, MD
Dr. Peter Abbott
MD
Willards, MD
Dr. Hanan Aboumatar
MD, MPH
Baltimore, MD
Dr. Ndubuisi Achufusi
M.D.
Greenbelt, MD
Dr. Jose Acol
MD
Mount Airy, MD
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Dian Grandison, FNP's specialty? ▼
Dian Grandison, FNP specializes in Family Medicine Physician and practices in Baltimore, Maryland. Credentials: FNP.
How much does Dian Grandison, FNP prescribe under Medicare Part D? ▼
In 2023, Dian Grandison, FNP wrote 30 Medicare Part D claims totaling $15K in drug costs for N/A beneficiaries.
What is Dian Grandison, FNP's Medicare quality score? ▼
Dian Grandison, FNP has a CMS MIPS Final Score of 74.4/100 (Quality: 64.7, Cost: 52.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Dian Grandison, FNP located? ▼
Dian Grandison, FNP is located at 4940 EASTERN AVE, Baltimore, MD, 21224. Phone: (410) 550-5452.
What is Dian Grandison, FNP's NPI number? ▼
Dian Grandison, FNP's National Provider Identifier (NPI) is 1083137970, issued on 07/21/2017.
Does Dian Grandison, FNP prescribe more brand-name or generic drugs? ▼
Dian Grandison, FNP's prescribing is 53% brand-name and 47% generic drugs by claim count, with $14K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
Does Dian Grandison, FNP accept Medicare? ▼
Dian Grandison, FNP appears in CMS Medicare data with 30 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 Dian Grandison, FNP's credentials? ▼
Dian Grandison, FNP's NPI is 1083137970 with credentials FNP. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.