NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1952341349 MD
Verify on CMS → David Sommerfeld, MD
Internal Medicine Physician in Naples, 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 172,737 in Internal 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 · 443 beneficiaries · Internal Medicine Physician avg: 3K
What the federal data shows
David Sommerfeld, MD filed 3,602 Medicare Part D claims in 2023 as an Internal Medicine Physician in Naples, Florida.
- 4K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥91st
- 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.
CMS NPPES provider registry desk
NPI 1952341349 · Internal Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1952341349
- ENUM-LEGACY 2006
- TAX-MEGA 173K Internal Medicine
- RX-MID 3,602
- BOOK-MID 11,125 in Florida
- PHOTO-ENUM Ding Wang · 2006
David Sommerfeld, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,602 ≥ 91st percentile 91% 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
✓
Board certification likely (heuristic, not verified)
David Sommerfeld, MD 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 David Sommerfeld, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
3,602 33% vs specialty avg
Specialty distribution in Florida
How Internal Medicine Physician compares to other specialties among Florida 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 Internal Medicine 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 | 1952341349 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/07/2006 |
Hospital and facility affiliations
Facilities where David Sommerfeld, 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.
Millennium Physician Group LLC
Naples, 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).
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 David Sommerfeld, MD. To verify David Sommerfeld, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
3,602
Total Claims
$112K
Total Drug Cost
443
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,781
- Total Day Supply
- 290,834
- Generic Drug Cost
- $51K
- Antibiotic Claims
- 50
Patient Demographics
- Average Patient Age
- 77.7 years
- Avg HCC Risk Score
- 1.22
- Gender Split
- 40% female / 60% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Sommerfeld, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
642 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
344 claims
- Amlodipine Besylate
Amlodipine Besylate
286 claims
- Lisinopril 256
Lisinopril
256 claims
- Levothyroxine Sodium 251
Levothyroxine Sodium
251 claims
- Hydrochlorothiazide 157
Hydrochlorothiazide
157 claims
- Losartan Potassium 157
Losartan Potassium
157 claims
- Allopurinol 82
Allopurinol
82 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 642 |
| Rosuvastatin Calcium | 344 |
| Amlodipine Besylate | 286 |
| Lisinopril | 256 |
| Levothyroxine Sodium | 251 |
| Hydrochlorothiazide | 157 |
| Losartan Potassium | 157 |
| Allopurinol | 82 |
| Alendronate Sodium | 79 |
| Atenolol | 73 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How David Sommerfeld, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
David Sommerfeld, MD's 3,602 claims are above the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Sommerfeld, both outside Florida so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Sommerfeld.
One of 11,125 Internal Medicine Physician providers enrolled in Florida, 5 are shown here.
Dr. Hayden Aaron
M.D.
West Palm Beach, FL
Dr. Abiedu Abaaba
M.D.
Jacksonville, FL
Dr. Kashif Abad
M.D.
West Palm Beach, FL
Dr. Jose Abando
MD
Daytona Beach, FL
Dr. Ismeth Abbas
M.D.
Jacksonville, FL
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is David Sommerfeld, MD's specialty? ▼
David Sommerfeld, MD specializes in Internal Medicine Physician and practices in Naples, Florida. Credentials: MD.
How much does David Sommerfeld, MD prescribe under Medicare Part D? ▼
In 2023, David Sommerfeld, MD wrote 3,602 Medicare Part D claims totaling $112K in drug costs for 443 beneficiaries.
Where is David Sommerfeld, MD located? ▼
David Sommerfeld, MD is located at 11181 HEALTH PARK BLVD, Naples, FL, 34110. Phone: (239) 249-8996.
What is David Sommerfeld, MD's NPI number? ▼
David Sommerfeld, MD's National Provider Identifier (NPI) is 1952341349, issued on 06/07/2006.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does David Sommerfeld, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Sommerfeld, MD's most frequently prescribed drugs include Atorvastatin Calcium, Rosuvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Sommerfeld, MD accept Medicare? ▼
David Sommerfeld, MD appears in CMS Medicare data with 3,602 Part D claims and 443 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Sommerfeld, MD's credentials? ▼
David Sommerfeld, MD's NPI is 1952341349 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.
- 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.