NPI registry status
Active
2026 NPPES data Otolaryngology Physician NPI 1316924608 MD
Verify on CMS → James Williams, MD
Otolaryngology Physician in Covina, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,893 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 · 638 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · Penalty band
Industry payments
$98.36
5 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
James Williams, MD reported a CMS MIPS final score of 0/100 - below the 83.1 national average - and filed 1,821 Medicare Part D claims in 2023.
- 0/100
- MIPS score · -83 vs avg
- 2K
- Part D claims, 2023
- 97%
- 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.
James Williams, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
0 0th percentile higher than 0% 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 James Williams, MD 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, James Williams, MD writes more Part D claims than 95% of them and scores higher on MIPS quality than 0% - 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 James Williams, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
James Williams, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 James Williams, MD?
Below national averagePrimary specialty
Otolaryngology Physician
Medicare Part D claims
1,821 258% vs specialty avg
MIPS final score
0/100 83.1 pts vs avg
Specialty distribution in California
How Otolaryngology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
James Williams, MD's 2023 MIPS final score plotted against the Otolaryngology Physician national average
- MIPS Final Score
- 0/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Otolaryngology Physician) - 0/100 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).
James Williams, MD appears in the CMS NPPES registry as an Otolaryngology Physician provider holding MD credentials at 202 WEST COLLEGE ST, Covina, CA, 91723, with a listed phone of (626) 966-2111. NPI 1316924608 was issued on 12/28/2005.
Medicare Part D records for calendar year 2023 show 1,821 prescription claims written by this provider, covering 638 Medicare beneficiaries and totaling roughly $38K in drug spend, split 3% brand-name and 97% generic by claim count, with an opioid prescribing rate of 0.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.
Otolaryngology Physician is a mid-sized specialty nationwide, with 10,893 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 | 1316924608 |
|---|---|
| Specialty | Otolaryngology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/28/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Avg: 83.1
0
Quality
Reporting: Individual
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 James Williams, MD. Source: openpaymentsdata.cms.gov.
Total received
$98
Largest payer
PFIZER 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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to James Williams, MD. To verify James Williams, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
James Williams, MD - brand share 3.0%
Otolaryngology Physician average
3% brand-name claims vs 97% generic, on 1,821 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.
1,821
Total Claims
$38K
Total Drug Cost
638
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,211
- Total Day Supply
- 46,453
- Brand vs Generic
- 3% brand / 97% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $36K
- Opioid Claims
- 11 (0.6% rate)
- Antibiotic Claims
- 464
Patient Demographics
- Average Patient Age
- 74.7 years
- Avg HCC Risk Score
- 1.42
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 45, 65-74: 290, 75-84: 214, 85+: 89
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What James Williams, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluticasone Propio…
Fluticasone Propionate
265 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
147 claims
- Ipratropium Bromide
Ipratropium Bromide
132 claims
- Azithromycin
Azithromycin
129 claims
- Neomycin-Polymyxin…
Neomycin-Polymyxin-Hc
119 claims
- Mometasone Furoate
Mometasone Furoate
117 claims
- Pantoprazole Sodium
Pantoprazole Sodium
109 claims
- Prednisone 102
Prednisone
102 claims
| Drug | Claims |
|---|---|
| Fluticasone Propionate | 265 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 147 |
| Ipratropium Bromide | 132 |
| Azithromycin | 129 |
| Neomycin-Polymyxin-Hc Neomycin/Polymyxin B/Hydrocort | 119 |
| Mometasone Furoate | 117 |
| Pantoprazole Sodium | 109 |
| Prednisone | 102 |
| Montelukast Sodium | 87 |
| Methylprednisolone | 74 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Otolaryngology Physician Overview
How James Williams, MD fits within the Otolaryngology Physician landscape nationally.
10,893
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider
James Williams, MD's 1,821 claims are above the specialty average of 509.
Nearby Otolaryngology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Williams.
Dr. Arman Abdalkhani
MD
Palo Alto, CA
Ahmed Abdelmeguid
Palo Alto, CA
Dr. Rami Abdou
M.D.
Santa Rosa, CA
Eric Abello
Orange, CA
Dr. Mohamed Aboueisha
MD
Los Angeles, CA
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 California 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 James Williams, MD's specialty? ▼
James Williams, MD specializes in Otolaryngology Physician and practices in Covina, California. Credentials: MD.
How much does James Williams, MD prescribe under Medicare Part D? ▼
In 2023, James Williams, MD wrote 1,821 Medicare Part D claims totaling $38K in drug costs for 638 beneficiaries.
What is James Williams, MD's Medicare quality score? ▼
James Williams, MD has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is James Williams, MD located? ▼
James Williams, MD is located at 202 WEST COLLEGE ST, Covina, CA, 91723. Phone: (626) 966-2111.
What is James Williams, MD's NPI number? ▼
James Williams, MD's National Provider Identifier (NPI) is 1316924608, issued on 12/28/2005.
Does James Williams, MD prescribe more brand-name or generic drugs? ▼
James Williams, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $2K in brand drug costs.
Does James Williams, MD prescribe opioids? ▼
Yes, James Williams, MD had 11 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Otolaryngology Physician providers are there in the US? ▼
There are 10,893 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 James Williams, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, James Williams, MD's most frequently prescribed drugs include Fluticasone Propionate, Amoxicillin-Clavulanate Potass, Ipratropium Bromide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Williams, MD accept Medicare? ▼
James Williams, MD appears in CMS Medicare data with 1,821 Part D claims and 638 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Williams, MD's credentials? ▼
James Williams, MD's NPI is 1316924608 with credentials MD. 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
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.