NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1821151291 MD
Verify on CMS → Judd Flesch, MD
Internal Medicine Physician in Philadelphia, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 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
503
Medicare Part D claims · 72 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
0%
generic claims · 51% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.5/100
▲ 2 pts above national avg 83.1 · Above neutral
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
Judd Flesch, MD reported a CMS MIPS final score of 85.5/100 - above the 83.1 national average - and filed 503 Medicare Part D claims in 2023.
- 85.5/100
- MIPS score · +2 vs avg
- 503
- Part D claims, 2023
- 0%
- 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.
Judd Flesch, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 49th percentile higher than 49% 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 Judd Flesch, MD sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Judd Flesch, MD writes more Part D claims than 44% of them and scores higher on MIPS quality than 48% - placing this provider in the lower-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 internal medicine physician peer from a representative sample of 60; the gold marker is Judd Flesch, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Judd Flesch, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 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 Judd Flesch, MD?
High performer (top quartile)Primary specialty
Internal Medicine Physician
Medicare Part D claims
503 81% vs specialty avg
MIPS final score
85.5/100 2.4 pts vs avg
Specialty distribution in Pennsylvania
How Internal Medicine Physician compares to other specialties among Pennsylvania providers
Medicare quality performance, MIPS
Judd Flesch, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 85.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 85.5/100 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).
Judd Flesch, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 51 N 39TH ST, Philadelphia, PA, 19104, with a listed phone of (215) 662-8767. NPI 1821151291 was issued on 12/18/2006.
Medicare Part D records for calendar year 2023 show 503 prescription claims written by this provider, covering 72 Medicare beneficiaries and totaling roughly $455K in drug spend, split 51% brand-name and 0% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.5/100 for the 2023 performance year (Quality 73.6), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1821151291 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/18/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
85.4852
Final Score
Avg: 83.1
73.6095
Quality
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Judd Flesch, 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.
According to CMS billing records, Judd Flesch, MD is affiliated with 3 Medicare-billing facilities.
Abington Memorial Hospital
Blue Bell, PA
Amh Medical Staff Service Fund
Abington, PA
University OF Penn-Medical Group
Philadelphia, PA
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 - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Judd Flesch, MD. To verify Judd Flesch, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Judd Flesch, MD - brand share 51.0%
Internal Medicine Physician average
51% brand-name claims vs 0% generic, on 503 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.
503
Total Claims
$455K
Total Drug Cost
72
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 657
- Total Day Supply
- 18,277
- Brand vs Generic
- 51% brand / 0% generic
- Brand Drug Cost
- $422K
- Antibiotic Claims
- 28
Patient Demographics
- Average Patient Age
- 70.0 years
- Avg HCC Risk Score
- 1.98
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Judd Flesch, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
82 claims
- Trelegy Ellipta
Trelegy Ellipta
61 claims
- Prednisone
Prednisone
37 claims
- Fluticasone Propio… 32
Fluticasone Propionate
32 claims
- Incruse Ellipta 21
Incruse Ellipta
21 claims
- Azithromycin 18
Azithromycin
18 claims
- Ipratropium Bromide 18
Ipratropium Bromide
18 claims
- Montelukast Sodium 16
Montelukast Sodium
16 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 82 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 61 |
| Prednisone | 37 |
| Fluticasone Propionate | 32 |
| Incruse Ellipta Umeclidinium Bromide | 21 |
| Azithromycin | 18 |
| Ipratropium Bromide | 18 |
| Montelukast Sodium | 16 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 15 |
| Breo Ellipta Fluticasone/Vilanterol | 15 |
* 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 Judd Flesch, MD fits within the Internal Medicine Physician landscape nationally.
172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Judd Flesch, MD's 503 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Flesch.
Dr. Erin Aakhus
M.D.
Philadelphia, PA
Dr. Muhammad Aamir
MD
Allentown, PA
Dr. Saira Aamir
MD
York, PA
Dr. John Aaron
MD
West Grove, PA
Dr. Todd Aaron
MD
Philadelphia, PA
Compare Internal 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 Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Internal 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.
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Frequently Asked Questions
What is Judd Flesch, MD's specialty? ▼
Judd Flesch, MD specializes in Internal Medicine Physician and practices in Philadelphia, Pennsylvania. Credentials: MD.
How much does Judd Flesch, MD prescribe under Medicare Part D? ▼
In 2023, Judd Flesch, MD wrote 503 Medicare Part D claims totaling $455K in drug costs for 72 beneficiaries.
What is Judd Flesch, MD's Medicare quality score? ▼
Judd Flesch, MD has a CMS MIPS Final Score of 85.5/100 (Quality: 73.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Judd Flesch, MD located? ▼
Judd Flesch, MD is located at 51 N 39TH ST, Philadelphia, PA, 19104. Phone: (215) 662-8767.
What is Judd Flesch, MD's NPI number? ▼
Judd Flesch, MD's National Provider Identifier (NPI) is 1821151291, issued on 12/18/2006.
Does Judd Flesch, MD prescribe more brand-name or generic drugs? ▼
Judd Flesch, MD's prescribing is 51% brand-name and 0% generic drugs by claim count, with $422K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,858 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 Judd Flesch, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Judd Flesch, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa, Trelegy Ellipta, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Judd Flesch, MD accept Medicare? ▼
Judd Flesch, MD appears in CMS Medicare data with 503 Part D claims and 72 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Judd Flesch, MD's credentials? ▼
Judd Flesch, MD's NPI is 1821151291 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
Compiled from official public sources by the PlainDoctor editorial team.