NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1386995934 ARNP
Verify on CMS → Rita Mercer, ARNP
Family Nurse Practitioner in Olympia, Washington.
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
495
Medicare Part D claims · 40 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Rita Mercer, ARNP filed 495 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Olympia, Washington, prescribing 80% generic.
- 495
- Part D claims, 2023
- 80%
- generic prescribing
- ≥62nd
- pct by Part D claim volume (lower-bound band)
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 Rita Mercer, ARNP
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1386995934), first enumerated 09/23/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 495 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Rita Mercer, ARNP's individual license status. Verify directly with the state medical board.
Source: WMC annual report 2023
- 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 1386995934 · Family Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1386995934
- ENUM-MID 2012
- TAX-MEGA 211K Family Nurse
- RX-LIGHT 495
- BOOK-LIGHT 3,090 in Washington
- PHOTO-ENUM Nisha Patel · 2012
Rita Mercer, ARNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
495 ≥ 62nd percentile 62% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Rita Mercer, ARNP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
495 59% vs specialty avg
Specialty distribution in Washington
How Family Nurse Practitioner compares to other specialties among Washington 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).
Practice Address
Provider Details
| NPI | 1386995934 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | ARNP |
| Gender | Female |
| NPI Issued | 09/23/2012 |
License & disciplinary context - Washington WMC 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 ~34K Washington medical licensees in 2023 - they are NOT specific to Rita Mercer, ARNP. To verify Rita Mercer, ARNP's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC 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 Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Rita Mercer, ARNP - brand share 20.0%
Family Nurse Practitioner average
20% brand-name claims vs 80% generic, on 495 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.
495
Total Claims
$50K
Total Drug Cost
40
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 572
- Total Day Supply
- 15,814
- Brand vs Generic
- 20% brand / 80% generic
- Brand Drug Cost
- $44K
- Generic Drug Cost
- $6K
- Opioid Claims
- 21 (4.2% rate)
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 68.3 years
- Avg HCC Risk Score
- 1.39
- Gender Split
- 55% female / 45% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Rita Mercer, ARNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ozempic
Ozempic
40 claims
- Losartan Potassium
Losartan Potassium
31 claims
- Metformin Hcl Er
Metformin Hcl Er
31 claims
- Lisinopril
Lisinopril
27 claims
- Synthroid
Synthroid
21 claims
- Famotidine
Famotidine
20 claims
- Alendronate Sodium
Alendronate Sodium
17 claims
- Amlodipine Besylate
Amlodipine Besylate
17 claims
| Drug | Claims |
|---|---|
| Ozempic Semaglutide | 40 |
| Losartan Potassium | 31 |
| Metformin Hcl Er Metformin Hcl | 31 |
| Lisinopril | 27 |
| Synthroid Levothyroxine Sodium | 21 |
| Famotidine | 20 |
| Alendronate Sodium | 17 |
| Amlodipine Besylate | 17 |
| Atorvastatin Calcium | 16 |
| Doxazosin Mesylate | 12 |
* 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 Rita Mercer, 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
Rita Mercer, ARNP's 495 claims are below the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Mercer, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Mercer.
One of 3,090 Family Nurse Practitioner providers enrolled in Washington, 5 are shown here.
Dr. Erin Aas
ARNP
Oak Harbor, WA
Amma Ababio
Sunnyside, WA
Dr. Kimberly Abbey
NP
Bellevue, WA
Dr. Mary Abbott
ARNP, FNP-C
Tacoma, WA
Nurto Abdulla
Seattle, WA
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Rita Mercer, ARNP's specialty? ▼
Rita Mercer, ARNP specializes in Family Nurse Practitioner and practices in Olympia, Washington. Credentials: ARNP.
How much does Rita Mercer, ARNP prescribe under Medicare Part D? ▼
In 2023, Rita Mercer, ARNP wrote 495 Medicare Part D claims totaling $50K in drug costs for 40 beneficiaries.
Where is Rita Mercer, ARNP located? ▼
Rita Mercer, ARNP is located at 700 LILLY RD NE, Olympia, WA, 98506. Phone: (360) 923-7000.
What is Rita Mercer, ARNP's NPI number? ▼
Rita Mercer, ARNP's National Provider Identifier (NPI) is 1386995934, issued on 09/23/2012.
Does Rita Mercer, ARNP prescribe more brand-name or generic drugs? ▼
Rita Mercer, ARNP's prescribing is 20% brand-name and 80% generic drugs by claim count, with $44K in brand drug costs.
Does Rita Mercer, ARNP prescribe opioids? ▼
Yes, Rita Mercer, ARNP had 21 opioid claims in 2023 with an opioid prescribing rate of 4.2%.
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 Rita Mercer, ARNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Rita Mercer, ARNP's most frequently prescribed drugs include Ozempic, Losartan Potassium, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rita Mercer, ARNP accept Medicare? ▼
Rita Mercer, ARNP appears in CMS Medicare data with 495 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rita Mercer, ARNP's credentials? ▼
Rita Mercer, ARNP's NPI is 1386995934 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.
- 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.