NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1326132135 ARNP
Verify on CMS → Griffin Manning, ARNP
Family Nurse Practitioner in New London, New Hampshire.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family Nurse Practitioner, 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
4K
Medicare Part D claims · 427 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
93%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.8/100
▲ 7 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Griffin Manning, ARNP reported a CMS MIPS final score of 89.8/100 - above the 83.1 national average - and filed 3,577 Medicare Part D claims in 2023.
- 89.8/100
- MIPS score · +7 vs avg
- 4K
- Part D claims, 2023
- 93%
- generic prescribing
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.
Griffin Manning, ARNP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
90 Top 42% higher than 58% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Griffin Manning, ARNP sits
This provider among family nurse practitioner peers
Across the 27,154 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Griffin Manning, ARNP writes more Part D claims than 91% of them and scores higher on MIPS quality than 60% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Griffin Manning, ARNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Griffin Manning, ARNP?
High performer (top quartile)Primary specialty
Family Nurse Practitioner
Medicare Part D claims
3,577 193% vs specialty avg
MIPS final score
89.8/100 6.7 pts vs avg
Specialty distribution in New Hampshire
How Family Nurse Practitioner compares to other specialties among New Hampshire providers
Medicare quality performance, MIPS
Griffin Manning, ARNP's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 89.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Family Nurse Practitioner) - 89.8/100 vs national avg 83.1
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).
Griffin Manning, ARNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding ARNP credentials at 273 COUNTY RD, New London, NH, 03257, with a listed phone of (603) 526-5544. NPI 1326132135 was issued on 10/03/2006.
Medicare Part D records for calendar year 2023 show 3,577 prescription claims written by this provider, covering 427 Medicare beneficiaries and totaling roughly $189K in drug spend, split 6% brand-name and 93% generic by claim count, with an opioid prescribing rate of 1.8%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.8/100 for the 2023 performance year (Quality 81.4), compared with the national average of 83.1.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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 | 1326132135 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | ARNP |
| Gender | Male |
| NPI Issued | 10/03/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
89.7541
Final Score
Avg: 83.1
81.3711
Quality
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Griffin Manning, ARNP 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.
The New London Hospital Association Inc
Newport, NH
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Griffin Manning, ARNP - brand share 6.0%
Family Nurse Practitioner average
6% brand-name claims vs 93% generic, on 3,577 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.
3,577
Total Claims
$189K
Total Drug Cost
427
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,469
- Total Day Supply
- 215,445
- Brand vs Generic
- 6% brand / 93% generic
- Brand Drug Cost
- $122K
- Generic Drug Cost
- $66K
- Opioid Claims
- 66 (1.8% rate)
- Antibiotic Claims
- 164
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 0.98
- Gender Split
- 41% female / 59% male
- Age Distribution
- <65: 38, 65-74: 171, 75-84: 166, 85+: 52
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Griffin Manning, ARNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
278 claims
- Lisinopril
Lisinopril
181 claims
- Hydrochlorothiazide
Hydrochlorothiazide
162 claims
- Amlodipine Besylate
Amlodipine Besylate
126 claims
- Omeprazole
Omeprazole
117 claims
- Losartan Potassium 104
Losartan Potassium
104 claims
- Metoprolol Succinate 104
Metoprolol Succinate
104 claims
- Levothyroxine Sodium 89
Levothyroxine Sodium
89 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 278 |
| Lisinopril | 181 |
| Hydrochlorothiazide | 162 |
| Amlodipine Besylate | 126 |
| Omeprazole | 117 |
| Losartan Potassium | 104 |
| Metoprolol Succinate | 104 |
| Levothyroxine Sodium | 89 |
| Simvastatin | 80 |
| Escitalopram Oxalate | 79 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Griffin Manning, ARNP fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Griffin Manning, ARNP's 3,577 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in New Hampshire
Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as Manning.
Elibel Abanilla
Derry, NH
Dr. Judith Abbe
APRN
Concord, NH
Dr. Cara Abbott
APRN
Lee, NH
Dr. McCall Abbott
APRN
Lebanon, NH
Dr. Janet Abreu
APRN
Pelham, NH
Compare Family Nurse Practitioner 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 New Hampshire medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Nurse Practitioner 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.
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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Griffin Manning, ARNP's specialty? ▼
Griffin Manning, ARNP specializes in Family Nurse Practitioner and practices in New London, New Hampshire. Credentials: ARNP.
How much does Griffin Manning, ARNP prescribe under Medicare Part D? ▼
In 2023, Griffin Manning, ARNP wrote 3,577 Medicare Part D claims totaling $189K in drug costs for 427 beneficiaries.
What is Griffin Manning, ARNP's Medicare quality score? ▼
Griffin Manning, ARNP has a CMS MIPS Final Score of 89.8/100 (Quality: 81.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Griffin Manning, ARNP located? ▼
Griffin Manning, ARNP is located at 273 COUNTY RD, New London, NH, 03257. Phone: (603) 526-5544.
What is Griffin Manning, ARNP's NPI number? ▼
Griffin Manning, ARNP's National Provider Identifier (NPI) is 1326132135, issued on 10/03/2006.
Does Griffin Manning, ARNP prescribe more brand-name or generic drugs? ▼
Griffin Manning, ARNP's prescribing is 6% brand-name and 93% generic drugs by claim count, with $122K in brand drug costs.
Does Griffin Manning, ARNP prescribe opioids? ▼
Yes, Griffin Manning, ARNP had 66 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Griffin Manning, ARNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Griffin Manning, ARNP's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Hydrochlorothiazide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Griffin Manning, ARNP accept Medicare? ▼
Griffin Manning, ARNP appears in CMS Medicare data with 3,577 Part D claims and 427 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Griffin Manning, ARNP's credentials? ▼
Griffin Manning, ARNP's NPI is 1326132135 with credentials ARNP. 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
Compiled from official public sources by the PlainDoctor editorial team.