NPI registry status
Active
2026 NPPES data Otolaryngology Physician NPI 1598182990
Verify on CMS → Annie Ahn
Otolaryngology Physician in Renton, 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 11,060 in Otolaryngology Physician, 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
395
Medicare Part D claims · 143 beneficiaries · Otolaryngology Physician avg: 536
Industry payments
$109.59
2 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Annie Ahn filed 395 Medicare Part D claims in 2024 as an Otolaryngology Physician in Renton, Washington.
- 395
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥56th
- 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 Annie Ahn
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1598182990), first enumerated 03/24/2014.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 395 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$109.59 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Annie Ahn'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 1598182990 · Otolaryngology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1598182990
- ENUM-MID 2014
- TAX-MID 11K Otolaryngology Physician
- RX-LIGHT 395
- BOOK-THIN 291 in Washington
- PHOTO-ENUM Shannon Rudy · 2014
Annie Ahn's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
395 ≥ 56th percentile 56% of 1,416,883 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 · 2024
✓
Board certification likely (heuristic, not verified)
Annie Ahn practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Annie Ahn?
Quality data not reportedPrimary specialty
Otolaryngology Physician
Medicare Part D claims
395 26% vs specialty avg
Specialty distribution in Washington
How Otolaryngology Physician 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 Otolaryngology Physician. 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 | 1598182990 |
|---|---|
| Specialty | Otolaryngology Physician |
| Gender | Female |
| NPI Issued | 03/24/2014 |
Hospital and facility affiliations
Facilities where Annie Ahn 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.
Valley Medical Group-Renton
Renton, WA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Annie Ahn. Source: openpaymentsdata.cms.gov.
Total received
$110
Largest payer
Medtronic, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
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 Annie Ahn. To verify Annie Ahn'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
395
Total Claims
$8K
Total Drug Cost
143
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 492.633
- Total Day Supply
- 12,120
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 47
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 1.29
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 12, 65-74: 69, 75-84: 47, 85+: 15
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Annie Ahn prescribes most
Top Medicare Part D drugs by claim count, 2024
- Azelastine Hcl
Azelastine Hcl
89 claims
- Fluticasone Propio…
Fluticasone Propionate
86 claims
- Ipratropium Bromide
Ipratropium Bromide
49 claims
- Amoxicillin-Clavul… 23
Amoxicillin-Clavulanate Potass
23 claims
- Famotidine 15
Famotidine
15 claims
- Ofloxacin 15
Ofloxacin
15 claims
- Prednisone 12
Prednisone
12 claims
| Drug | Claims |
|---|---|
| Azelastine Hcl | 89 |
| Fluticasone Propionate | 86 |
| Ipratropium Bromide | 49 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 23 |
| Famotidine | 15 |
| Ofloxacin | 15 |
| Prednisone | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Otolaryngology Physician Overview
How Annie Ahn fits within the Otolaryngology Physician landscape nationally.
11,060
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
536
Avg Claims per Provider
Annie Ahn's 395 claims are below the specialty average of 536.
Nationwide Otolaryngology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ahn, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2014)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Otolaryngology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Ahn.
One of 291 Otolaryngology Physician providers enrolled in Washington, 5 are shown here.
Dr. Paul Abson
MD
Everett, WA
Dr. Virginie Achim
MD
Spokane, WA
Dr. Jeffery Adams
MD
Everett, WA
Dr. Galit Almosnino
MD
Kirkland, WA
Dr. Philemon Anderson
M.D.
Vancouver, WA
Compare Otolaryngology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Annie Ahn's specialty? ▼
Annie Ahn specializes in Otolaryngology Physician and practices in Renton, Washington.
How much does Annie Ahn prescribe under Medicare Part D? ▼
In 2024, Annie Ahn wrote 395 Medicare Part D claims totaling $8K in drug costs for 143 beneficiaries.
Where is Annie Ahn located? ▼
Annie Ahn is located at 4033 TALBOT RD S STE 540, Renton, WA, 98055. Phone: (425) 690-3602.
What is Annie Ahn's NPI number? ▼
Annie Ahn's National Provider Identifier (NPI) is 1598182990, issued on 03/24/2014.
How many Otolaryngology Physician providers are there in the US? ▼
There are 11,060 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 536 Medicare Part D claims per year.
What drugs does Annie Ahn prescribe most often? ▼
Based on 2024 Medicare Part D data, Annie Ahn's most frequently prescribed drugs include Azelastine Hcl, Fluticasone Propionate, Ipratropium Bromide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Annie Ahn accept Medicare? ▼
Annie Ahn appears in CMS Medicare data with 395 Part D claims and 143 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Annie Ahn's credentials? ▼
Annie Ahn's NPI is 1598182990. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.