NPI registry status
Active
2026 NPPES data Otolaryngology Physician NPI 1992739676 M.D.
Verify on CMS → Joan Coker, M.D.
Otolaryngology Physician in Wilmington, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,895 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
2K
Medicare Part D claims · 520 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.6/100
▼ 4 pts below national avg 83.1 · Above neutral
Industry payments
$630.58
20 payments · CMS Open Payments (Sunshine Act)
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
Joan Coker, M.D. reported a CMS MIPS final score of 78.6/100 - below the 83.1 national average - and filed 1,568 Medicare Part D claims in 2023.
- 78.6/100
- MIPS score · -4 vs avg
- 2K
- Part D claims, 2023
- 98%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Joan Coker, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 27th percentile higher than 27% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Joan Coker, M.D. sits
This provider among otolaryngology physician peers
Across the 3,669 otolaryngology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Joan Coker, M.D. writes more Part D claims than 92% of them and scores higher on MIPS quality than 38% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one otolaryngology physician peer from a representative sample of 60; the gold marker is Joan Coker, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Joan Coker, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Joan Coker, M.D.?
Near national averagePrimary specialty
Otolaryngology Physician
Medicare Part D claims
1,568 208% vs specialty avg
MIPS final score
78.6/100 4.5 pts vs avg
Specialty distribution in Delaware
How Otolaryngology Physician compares to other specialties among Delaware providers
Medicare quality performance, MIPS
Joan Coker, M.D.'s 2023 MIPS final score plotted against the Otolaryngology Physician national average
- MIPS Final Score
- 78.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Otolaryngology Physician) - 78.6/100 vs national avg 83.1
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).
Joan Coker, M.D. appears in the CMS NPPES registry as a Otolaryngology Physician provider holding M.D. credentials at 1401 FOULK ROAD, Wilmington, DE, 19803, with a listed phone of (302) 998-0300. NPI 1992739676 was issued on 07/10/2006.
Medicare Part D records for calendar year 2023 show 1,568 prescription claims written by this provider, covering 520 Medicare beneficiaries and totaling roughly $62K in drug spend, split 2% brand-name and 98% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78.6/100 for the 2023 performance year (Quality 78, Cost 69.1), compared with the national average of 83.1.
Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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 | 1992739676 |
|---|---|
| Specialty | Otolaryngology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 07/10/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
78.631
Final Score
Avg: 83.1
78.011
Quality
69.0833
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Joan Coker, M.D. 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.
Christiana Care Health Services Inc
Newark, DE
Ent And Allergy OF Delaware LLC
Wilmington, DE
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 Joan Coker, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$631
Largest payer
Inspire Medical Systems, 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.
Brand vs generic prescribing mix · Generic-heavy
Joan Coker, M.D. - brand share 2.0%
Otolaryngology Physician average
2% brand-name claims vs 98% generic, on 1,568 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.
1,568
Total Claims
$62K
Total Drug Cost
520
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,391
- Total Day Supply
- 96,975
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $50K
- Antibiotic Claims
- 45
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 1.16
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 44, 65-74: 231, 75-84: 192, 85+: 53
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joan Coker, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levocetirizine Dih…
Levocetirizine Dihydrochloride
504 claims
- Montelukast Sodium
Montelukast Sodium
215 claims
- Fluticasone Propio… 132
Fluticasone Propionate
132 claims
- Mometasone Furoate 89
Mometasone Furoate
89 claims
- Omeprazole 76
Omeprazole
76 claims
- Azelastine Hcl 74
Azelastine Hcl
74 claims
- Amitriptyline Hcl 67
Amitriptyline Hcl
67 claims
- Prednisone 62
Prednisone
62 claims
| Drug | Claims |
|---|---|
| Levocetirizine Dihydrochloride | 504 |
| Montelukast Sodium | 215 |
| Fluticasone Propionate | 132 |
| Mometasone Furoate | 89 |
| Omeprazole | 76 |
| Azelastine Hcl | 74 |
| Amitriptyline Hcl | 67 |
| Prednisone | 62 |
| Fluocinolone Acetonide Oil | 58 |
| Azithromycin | 35 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Otolaryngology Physician Overview
How Joan Coker, M.D. fits within the Otolaryngology Physician landscape nationally.
10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider
Joan Coker, M.D.'s 1,568 claims are above the specialty average of 509.
Nearby Otolaryngology Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Coker.
Dr. Awny Abdou
M.D.
Wilmington, DE
Dr. Nicholas Berg
M.D.
Wilmington, DE
Dr. Lauren Bogdan
MD
Wilmington, DE
Dr. Claude Dimarco
DO
Seaford, DE
Dr. Timoteo Gabriel
MD
Wilmington, DE
Compare Otolaryngology Physician 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 Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Otolaryngology Physician 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 Joan Coker, M.D.'s specialty? ▼
Joan Coker, M.D. specializes in Otolaryngology Physician and practices in Wilmington, Delaware. Credentials: M.D..
How much does Joan Coker, M.D. prescribe under Medicare Part D? ▼
In 2023, Joan Coker, M.D. wrote 1,568 Medicare Part D claims totaling $62K in drug costs for 520 beneficiaries.
What is Joan Coker, M.D.'s Medicare quality score? ▼
Joan Coker, M.D. has a CMS MIPS Final Score of 78.6/100 (Quality: 78, Cost: 69.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Joan Coker, M.D. located? ▼
Joan Coker, M.D. is located at 1401 FOULK ROAD, Wilmington, DE, 19803. Phone: (302) 998-0300.
What is Joan Coker, M.D.'s NPI number? ▼
Joan Coker, M.D.'s National Provider Identifier (NPI) is 1992739676, issued on 07/10/2006.
Does Joan Coker, M.D. prescribe more brand-name or generic drugs? ▼
Joan Coker, M.D.'s prescribing is 2% brand-name and 98% generic drugs by claim count, with $11K in brand drug costs.
How many Otolaryngology Physician providers are there in the US? ▼
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does Joan Coker, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Joan Coker, M.D.'s most frequently prescribed drugs include Levocetirizine Dihydrochloride, Montelukast Sodium, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joan Coker, M.D. accept Medicare? ▼
Joan Coker, M.D. appears in CMS Medicare data with 1,568 Part D claims and 520 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joan Coker, M.D.'s credentials? ▼
Joan Coker, M.D.'s NPI is 1992739676 with credentials M.D.. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.