NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1215697891 FNP
Verify on CMS → Christa Adams, FNP
Family Nurse Practitioner in Lewiston, 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 209,817 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
2K
Medicare Part D claims · 149 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
84%
generic claims · 15% 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
Christa Adams, FNP filed 1,680 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Lewiston, Maine, prescribing 84% generic.
- 2K
- Part D claims, 2023
- 84%
- 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.
Christa Adams, FNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,680 Top 18% higher than 82% 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 Christa Adams, FNP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
1,680 37% vs specialty avg
Specialty distribution in Maine
How Family 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 Family 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).
Christa Adams, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 33 ROGER ST, Lewiston, ME, 04240, with a listed phone of (207) 784-0108. NPI 1215697891 was issued on 12/23/2021.
Medicare Part D records for calendar year 2023 show 1,680 prescription claims written by this provider, covering 149 Medicare beneficiaries and totaling roughly $122K in drug spend, split 15% brand-name and 84% generic by claim count, with an opioid prescribing rate of 5.3%.
Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 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 | 1215697891 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 12/23/2021 |
Brand vs generic prescribing mix · Typical
Christa Adams, FNP - brand share 15.0%
Family Nurse Practitioner average
15% brand-name claims vs 84% generic, on 1,680 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.
1,680
Total Claims
$122K
Total Drug Cost
149
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,684
- Total Day Supply
- 36,303
- Brand vs Generic
- 15% brand / 84% generic
- Brand Drug Cost
- $69K
- Generic Drug Cost
- $39K
- Opioid Claims
- 89 (5.3% rate)
- Antibiotic Claims
- 30
Patient Demographics
- Average Patient Age
- 76.1 years
- Avg HCC Risk Score
- 2.33
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 19, 65-74: 43, 75-84: 50, 85+: 37
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christa Adams, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
83 claims
- Trazodone Hcl
Trazodone Hcl
65 claims
- Gabapentin
Gabapentin
48 claims
- Sertraline Hcl
Sertraline Hcl
48 claims
- Duloxetine Hcl
Duloxetine Hcl
45 claims
- Warfarin Sodium
Warfarin Sodium
45 claims
- Mirtazapine
Mirtazapine
44 claims
- Metoprolol Tartrate
Metoprolol Tartrate
42 claims
| Drug | Claims |
|---|---|
| Furosemide | 83 |
| Trazodone Hcl | 65 |
| Gabapentin | 48 |
| Sertraline Hcl | 48 |
| Duloxetine Hcl | 45 |
| Warfarin Sodium | 45 |
| Mirtazapine | 44 |
| Metoprolol Tartrate | 42 |
| Tramadol Hcl | 39 |
| Diclofenac Sodium | 35 |
* 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 Christa Adams, FNP fits within the Family Nurse Practitioner landscape nationally.
209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Christa Adams, FNP's 1,680 claims are above the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as Adams.
Dr. Susan Abbott
FNP-C
Waterville, ME
Dr. Tammy Abbott
NP
Lewiston, ME
Dr. Samuel Acha
FNP-BC
Westbrook, ME
Dr. Shannon Achorn
NP
Rockland, ME
Dr. Katharine Addicott
FNP
Portland, ME
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 Maine 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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Frequently Asked Questions
What is Christa Adams, FNP's specialty? ▼
Christa Adams, FNP specializes in Family Nurse Practitioner and practices in Lewiston, Maine. Credentials: FNP.
How much does Christa Adams, FNP prescribe under Medicare Part D? ▼
In 2023, Christa Adams, FNP wrote 1,680 Medicare Part D claims totaling $122K in drug costs for 149 beneficiaries.
Where is Christa Adams, FNP located? ▼
Christa Adams, FNP is located at 33 ROGER ST, Lewiston, ME, 04240. Phone: (207) 784-0108.
What is Christa Adams, FNP's NPI number? ▼
Christa Adams, FNP's National Provider Identifier (NPI) is 1215697891, issued on 12/23/2021.
Does Christa Adams, FNP prescribe more brand-name or generic drugs? ▼
Christa Adams, FNP's prescribing is 15% brand-name and 84% generic drugs by claim count, with $69K in brand drug costs.
Does Christa Adams, FNP prescribe opioids? ▼
Yes, Christa Adams, FNP had 89 opioid claims in 2023 with an opioid prescribing rate of 5.3%.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 209,817 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 Christa Adams, FNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Christa Adams, FNP's most frequently prescribed drugs include Furosemide, Trazodone Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christa Adams, FNP accept Medicare? ▼
Christa Adams, FNP appears in CMS Medicare data with 1,680 Part D claims and 149 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christa Adams, FNP's credentials? ▼
Christa Adams, FNP's NPI is 1215697891 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.
- 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.