NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1053460584 MSRN,BC
Verify on CMS → Joanna Peatfield, MSRN,BC
Gerontology Nurse Practitioner in Lawrence, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,706 in Gerontology 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 · 122 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Joanna Peatfield, MSRN,BC filed 3,981 Medicare Part D claims in 2023 as a Gerontology Nurse Practitioner in Lawrence, Massachusetts, prescribing 85% generic.
- 4K
- Part D claims, 2023
- 85%
- 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.
Joanna Peatfield, MSRN,BC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,981 Top 9% higher than 91% 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
What does the federal data show about Joanna Peatfield, MSRN,BC?
Quality data not reportedPrimary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
3,981 210% vs specialty avg
Specialty distribution in Massachusetts
How Gerontology Nurse Practitioner compares to other specialties among Massachusetts 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 Gerontology Nurse Practitioner. 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).
Joanna Peatfield, MSRN,BC appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding MSRN,BC credentials at 360 MERRIMACK ST, Lawrence, MA, 01843, with a listed phone of (978) 655-6652. NPI 1053460584 was issued on 01/10/2007.
Medicare Part D records for calendar year 2023 show 3,981 prescription claims written by this provider, covering 122 Medicare beneficiaries and totaling roughly $216K in drug spend, split 14% brand-name and 85% generic by claim count, with an opioid prescribing rate of 2.9%.
Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,706 enrolled providers across 54 states and an average of 1,283 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 | 1053460584 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Credentials | MSRN,BC |
| Gender | Female |
| NPI Issued | 01/10/2007 |
License & disciplinary context - Massachusetts BORIM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Joanna Peatfield, MSRN,BC. To verify Joanna Peatfield, MSRN,BC's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Joanna Peatfield, MSRN,BC - brand share 14.0%
Gerontology Nurse Practitioner average
14% brand-name claims vs 85% generic, on 3,981 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.
3,981
Total Claims
$216K
Total Drug Cost
122
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,399
- Total Day Supply
- 118,233
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $166K
- Generic Drug Cost
- $48K
- Opioid Claims
- 117 (2.9% rate)
- Antibiotic Claims
- 49
Patient Demographics
- Average Patient Age
- 83.9 years
- Avg HCC Risk Score
- 2.56
- Gender Split
- 83% female / 17% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joanna Peatfield, MSRN,BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
181 claims
- Atorvastatin Calcium
Atorvastatin Calcium
168 claims
- Amlodipine Besylate
Amlodipine Besylate
151 claims
- Omeprazole
Omeprazole
150 claims
- Gabapentin
Gabapentin
147 claims
- Lisinopril
Lisinopril
147 claims
- Eliquis
Eliquis
118 claims
- Escitalopram Oxalate
Escitalopram Oxalate
116 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 181 |
| Atorvastatin Calcium | 168 |
| Amlodipine Besylate | 151 |
| Omeprazole | 150 |
| Gabapentin | 147 |
| Lisinopril | 147 |
| Eliquis Apixaban | 118 |
| Escitalopram Oxalate | 116 |
| Potassium Chloride | 94 |
| Furosemide | 88 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gerontology Nurse Practitioner Overview
How Joanna Peatfield, MSRN,BC fits within the Gerontology Nurse Practitioner landscape nationally.
9,706
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider
Joanna Peatfield, MSRN,BC's 3,981 claims are above the specialty average of 1,283.
Nearby Gerontology Nurse Practitioner Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Peatfield.
Dr. Julie Abert
NP
Feeding Hills, MA
Dr. Francisca Adams
MSN, APRN, BC
Waltham, MA
Jeanne Adrien
Danvers, MA
Dr. Steven Afrow
NP
Boston, MA
Dr. Nadege Alce
RN
Rockland, MA
Compare Gerontology 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 Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gerontology 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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Frequently Asked Questions
What is Joanna Peatfield, MSRN,BC's specialty? ▼
Joanna Peatfield, MSRN,BC specializes in Gerontology Nurse Practitioner and practices in Lawrence, Massachusetts. Credentials: MSRN,BC.
How much does Joanna Peatfield, MSRN,BC prescribe under Medicare Part D? ▼
In 2023, Joanna Peatfield, MSRN,BC wrote 3,981 Medicare Part D claims totaling $216K in drug costs for 122 beneficiaries.
Where is Joanna Peatfield, MSRN,BC located? ▼
Joanna Peatfield, MSRN,BC is located at 360 MERRIMACK ST, Lawrence, MA, 01843. Phone: (978) 655-6652.
What is Joanna Peatfield, MSRN,BC's NPI number? ▼
Joanna Peatfield, MSRN,BC's National Provider Identifier (NPI) is 1053460584, issued on 01/10/2007.
Does Joanna Peatfield, MSRN,BC prescribe more brand-name or generic drugs? ▼
Joanna Peatfield, MSRN,BC's prescribing is 14% brand-name and 85% generic drugs by claim count, with $166K in brand drug costs.
Does Joanna Peatfield, MSRN,BC prescribe opioids? ▼
Yes, Joanna Peatfield, MSRN,BC had 117 opioid claims in 2023 with an opioid prescribing rate of 2.9%.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 9,706 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does Joanna Peatfield, MSRN,BC prescribe most often? ▼
Based on 2023 Medicare Part D data, Joanna Peatfield, MSRN,BC's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joanna Peatfield, MSRN,BC accept Medicare? ▼
Joanna Peatfield, MSRN,BC appears in CMS Medicare data with 3,981 Part D claims and 122 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joanna Peatfield, MSRN,BC's credentials? ▼
Joanna Peatfield, MSRN,BC's NPI is 1053460584 with credentials MSRN,BC. 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.