NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1336696590
Verify on CMS → Nathaniel Anderson
Gerontology Nurse Practitioner in Yarmouth, Maine.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,625 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
2K
Medicare Part D claims · 104 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
86%
generic claims · 12% 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
Nathaniel Anderson filed 2,339 Medicare Part D claims in 2023 as a Gerontology Nurse Practitioner in Yarmouth, Maine, prescribing 86% generic.
- 2K
- Part D claims, 2023
- 86%
- 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.
Nathaniel Anderson's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,339 Top 14% higher than 86% 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 Nathaniel Anderson?
Quality data not reportedPrimary specialty
Gerontology Nurse Practitioner
Medicare Part D claims
2,339 82% vs specialty avg
Specialty distribution in Maine
How Gerontology Nurse Practitioner compares to other specialties among Maine 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).
Nathaniel Anderson appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider at 266 E ELM ST, Yarmouth, ME, 04096, with a listed phone of (207) 232-9105. NPI 1336696590 was issued on 09/06/2016.
Medicare Part D records for calendar year 2023 show 2,339 prescription claims written by this provider, covering 104 Medicare beneficiaries and totaling roughly $143K in drug spend, split 12% brand-name and 86% generic by claim count, with an opioid prescribing rate of 5.3%.
Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 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 | 1336696590 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Gender | Male |
| NPI Issued | 09/06/2016 |
Brand vs generic prescribing mix · Typical
Nathaniel Anderson - brand share 12.0%
Gerontology Nurse Practitioner average
12% brand-name claims vs 86% generic, on 2,339 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.
2,339
Total Claims
$143K
Total Drug Cost
104
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,383
- Total Day Supply
- 60,636
- Brand vs Generic
- 12% brand / 86% generic
- Brand Drug Cost
- $86K
- Generic Drug Cost
- $54K
- Opioid Claims
- 125 (5.3% rate)
- Antibiotic Claims
- 104
Patient Demographics
- Average Patient Age
- 86.2 years
- Avg HCC Risk Score
- 1.88
- Gender Split
- 71% female / 29% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Nathaniel Anderson prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
138 claims
- Atorvastatin Calcium
Atorvastatin Calcium
105 claims
- Levothyroxine Sodium
Levothyroxine Sodium
91 claims
- Sertraline Hcl
Sertraline Hcl
68 claims
- Tamsulosin Hcl
Tamsulosin Hcl
68 claims
- Amlodipine Besylate
Amlodipine Besylate
66 claims
- Trazodone Hcl
Trazodone Hcl
59 claims
- Eliquis
Eliquis
56 claims
| Drug | Claims |
|---|---|
| Furosemide | 138 |
| Atorvastatin Calcium | 105 |
| Levothyroxine Sodium | 91 |
| Sertraline Hcl | 68 |
| Tamsulosin Hcl | 68 |
| Amlodipine Besylate | 66 |
| Trazodone Hcl | 59 |
| Eliquis Apixaban | 56 |
| Metoprolol Tartrate | 56 |
| Gabapentin | 55 |
* 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 Nathaniel Anderson fits within the Gerontology Nurse Practitioner landscape nationally.
9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider
Nathaniel Anderson's 2,339 claims are above the specialty average of 1,283.
Nearby Gerontology Nurse Practitioner Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as Anderson.
Dr. Nicole Achorn
AGACNP-BC
Rockport, ME
Dr. Melissa Asci
APRN-CNP
Portland, ME
Dr. Franca Austin-Opara
NP
Bangor, ME
Dr. Mackenzie Barth
AGACNP
Biddeford, ME
Dr. Elizabeth Barthmaier
CRNP
South Portland, ME
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 Maine 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 Nathaniel Anderson's specialty? ▼
Nathaniel Anderson specializes in Gerontology Nurse Practitioner and practices in Yarmouth, Maine.
How much does Nathaniel Anderson prescribe under Medicare Part D? ▼
In 2023, Nathaniel Anderson wrote 2,339 Medicare Part D claims totaling $143K in drug costs for 104 beneficiaries.
Where is Nathaniel Anderson located? ▼
Nathaniel Anderson is located at 266 E ELM ST, Yarmouth, ME, 04096. Phone: (207) 232-9105.
What is Nathaniel Anderson's NPI number? ▼
Nathaniel Anderson's National Provider Identifier (NPI) is 1336696590, issued on 09/06/2016.
Does Nathaniel Anderson prescribe more brand-name or generic drugs? ▼
Nathaniel Anderson's prescribing is 12% brand-name and 86% generic drugs by claim count, with $86K in brand drug costs.
Does Nathaniel Anderson prescribe opioids? ▼
Yes, Nathaniel Anderson had 125 opioid claims in 2023 with an opioid prescribing rate of 5.3%.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 9,625 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 Nathaniel Anderson prescribe most often? ▼
Based on 2023 Medicare Part D data, Nathaniel Anderson's most frequently prescribed drugs include Furosemide, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nathaniel Anderson accept Medicare? ▼
Nathaniel Anderson appears in CMS Medicare data with 2,339 Part D claims and 104 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nathaniel Anderson's credentials? ▼
Nathaniel Anderson's NPI is 1336696590. 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.