NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1356428585 MD
Verify on CMS → William Jacobs, MD
Emergency Medicine Physician in Green Cove Springs, Florida.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency Medicine 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
4K
Medicare Part D claims · 325 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$264.47
11 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
William Jacobs, MD reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 4,286 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 4K
- Part D claims, 2023
- 94%
- 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.
William Jacobs, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% 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 William Jacobs, MD sits
This provider among emergency medicine physician peers
Across the 14,967 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Jacobs, MD writes more Part D claims than 99% of them and scores higher on MIPS quality than 9% - 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 emergency medicine physician peer from a representative sample of 60; the gold marker is William Jacobs, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
William Jacobs, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 William Jacobs, MD?
Below national averagePrimary specialty
Emergency Medicine Physician
Medicare Part D claims
4,286 12× vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in Florida
How Emergency Medicine Physician compares to other specialties among Florida providers
Medicare quality performance, MIPS
William Jacobs, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Emergency Medicine Physician) - 75/100 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).
William Jacobs, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 3185 HIGHWAY 17, Green Cove Springs, FL, 32043, with a listed phone of (904) 284-4222. NPI 1356428585 was issued on 11/01/2006.
Medicare Part D records for calendar year 2023 show 4,286 prescription claims written by this provider, covering 325 Medicare beneficiaries and totaling roughly $173K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 9.9%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1356428585 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/01/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
Reporting: Individual
Hospital and facility affiliations
Facilities where William Jacobs, MD 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.
Magnolia Urgent Care, PA
Green Cove Springs, FL
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 William Jacobs, MD. Source: openpaymentsdata.cms.gov.
Total received
$264
Largest payer
AstraZeneca Pharmaceuticals LP
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 - Florida FLDOH 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 ~75K Florida medical licensees in 2023 - they are NOT specific to William Jacobs, MD. To verify William Jacobs, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases
FLDOH 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 Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
William Jacobs, MD - brand share 6.0%
Emergency Medicine Physician average
6% brand-name claims vs 94% generic, on 4,286 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.
4,286
Total Claims
$173K
Total Drug Cost
325
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,013
- Total Day Supply
- 206,941
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $100K
- Generic Drug Cost
- $72K
- Opioid Claims
- 426 (9.9% rate)
- Antibiotic Claims
- 615
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.02
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 36, 65-74: 156, 75-84: 101, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What William Jacobs, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
381 claims
- Alprazolam
Alprazolam
255 claims
- Fluconazole
Fluconazole
172 claims
- Azithromycin
Azithromycin
159 claims
- Amoxicillin 144
Amoxicillin
144 claims
- Amlodipine Besylate 142
Amlodipine Besylate
142 claims
- Simvastatin 139
Simvastatin
139 claims
- Omeprazole 137
Omeprazole
137 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 381 |
| Alprazolam | 255 |
| Fluconazole | 172 |
| Azithromycin | 159 |
| Amoxicillin | 144 |
| Amlodipine Besylate | 142 |
| Simvastatin | 139 |
| Omeprazole | 137 |
| Lisinopril | 101 |
| Prednisone | 99 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How William Jacobs, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
William Jacobs, MD's 4,286 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Jacobs.
Dr. Rosemarie Abad
MD
Jacksonville, FL
Dr. Neal Abarbanell
MD
Miami, FL
Dr. Danny Abbruzzese
MD
Spring Hill, FL
Dr. Ahmed Abd El Aziz
MD
Fort Lauderdale, FL
Dr. Ahmed Abdelmagid
M.D.
Macclenny, FL
Compare Emergency Medicine 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 Florida medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine 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.
Healthcare Guides
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Frequently Asked Questions
What is William Jacobs, MD's specialty? ▼
William Jacobs, MD specializes in Emergency Medicine Physician and practices in Green Cove Springs, Florida. Credentials: MD.
How much does William Jacobs, MD prescribe under Medicare Part D? ▼
In 2023, William Jacobs, MD wrote 4,286 Medicare Part D claims totaling $173K in drug costs for 325 beneficiaries.
What is William Jacobs, MD's Medicare quality score? ▼
William Jacobs, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is William Jacobs, MD located? ▼
William Jacobs, MD is located at 3185 HIGHWAY 17, Green Cove Springs, FL, 32043. Phone: (904) 284-4222.
What is William Jacobs, MD's NPI number? ▼
William Jacobs, MD's National Provider Identifier (NPI) is 1356428585, issued on 11/01/2006.
Does William Jacobs, MD prescribe more brand-name or generic drugs? ▼
William Jacobs, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $100K in brand drug costs.
Does William Jacobs, MD prescribe opioids? ▼
Yes, William Jacobs, MD had 426 opioid claims in 2023 with an opioid prescribing rate of 9.9%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does William Jacobs, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Jacobs, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Alprazolam, Fluconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Jacobs, MD accept Medicare? ▼
William Jacobs, MD appears in CMS Medicare data with 4,286 Part D claims and 325 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Jacobs, MD's credentials? ▼
William Jacobs, MD's NPI is 1356428585 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.