NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1982687109 MD
Verify on CMS → Hal Blumenfeld, MD
Neurology Physician in New Haven, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 19,866 in Neurology 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
239
Medicare Part D claims · 36 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.6/100
▼ 10 pts below national avg 83.1 · Mid-tier
Industry payments
$182.88
1 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
Hal Blumenfeld, MD reported a CMS MIPS final score of 73.6/100 - below the 83.1 national average - and filed 239 Medicare Part D claims in 2023.
- 73.6/100
- MIPS score · -10 vs avg
- 239
- Part D claims, 2023
- 77%
- 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.
Hal Blumenfeld, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 11th percentile higher than 11% 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 Hal Blumenfeld, MD sits
This provider among neurology physician peers
Across the 5,437 neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Hal Blumenfeld, MD writes more Part D claims than 22% of them and scores higher on MIPS quality than 12% - 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 neurology physician peer from a representative sample of 60; the gold marker is Hal Blumenfeld, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Hal Blumenfeld, 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 Hal Blumenfeld, MD?
Below national averagePrimary specialty
Neurology Physician
Medicare Part D claims
239 82% vs specialty avg
MIPS final score
73.6/100 9.5 pts vs avg
Specialty distribution in Connecticut
How Neurology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Hal Blumenfeld, MD's 2023 MIPS final score plotted against the Neurology Physician national average
- MIPS Final Score
- 73.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Neurology Physician) - 73.6/100 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).
Hal Blumenfeld, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 40 TEMPLE ST, New Haven, CT, 06510, with a listed phone of (203) 785-4085. NPI 1982687109 was issued on 11/22/2005.
Medicare Part D records for calendar year 2023 show 239 prescription claims written by this provider, covering 36 Medicare beneficiaries and totaling roughly $79K in drug spend, split 23% brand-name and 77% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.6/100 for the 2023 performance year (Quality 75.8, Cost 51.4), compared with the national average of 83.1.
Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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 | 1982687109 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/22/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.5637
Final Score
Avg: 83.1
75.8435
Quality
51.4318
Cost
74
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Hal Blumenfeld, 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.
Yale University
New Haven, CT
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 Hal Blumenfeld, MD. Source: openpaymentsdata.cms.gov.
Total received
$183
Largest payer
NEUROPACE, 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 · Typical
Hal Blumenfeld, MD - brand share 23.0%
Neurology Physician average
23% brand-name claims vs 77% generic, on 239 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.
239
Total Claims
$79K
Total Drug Cost
36
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 425
- Total Day Supply
- 12,572
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $68K
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 54.9 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 23, 65-74: N/A, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Hal Blumenfeld, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levetiracetam
Levetiracetam
58 claims
- Lamotrigine
Lamotrigine
27 claims
- Levetiracetam Er
Levetiracetam Er
26 claims
- Phenytoin Sodium E… 17
Phenytoin Sodium Extended
17 claims
- Clobazam 16
Clobazam
16 claims
- Oxtellar Xr 14
Oxtellar Xr
14 claims
- Briviact 13
Briviact
13 claims
- Depakote Er 11
Depakote Er
11 claims
| Drug | Claims |
|---|---|
| Levetiracetam | 58 |
| Lamotrigine | 27 |
| Levetiracetam Er Levetiracetam | 26 |
| Phenytoin Sodium Extended | 17 |
| Clobazam | 16 |
| Oxtellar Xr Oxcarbazepine | 14 |
| Briviact Brivaracetam | 13 |
| Depakote Er Divalproex Sodium | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Hal Blumenfeld, MD fits within the Neurology Physician landscape nationally.
19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Hal Blumenfeld, MD's 239 claims are below the specialty average of 1,309.
Nearby Neurology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Blumenfeld.
Dr. Wasan Abd Wahab
M.D.
New Haven, CT
Dr. Swetha Ade
M.D.
Hartford, CT
Dr. Ashish Adlakha
MD
Farmington, CT
Dr. Idaira Aguilar Tejedor
M.D.
Stratford, CT
Dr. Anees Ahmed
MD
Manchester, CT
Compare Neurology 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology 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 Hal Blumenfeld, MD's specialty? ▼
Hal Blumenfeld, MD specializes in Neurology Physician and practices in New Haven, Connecticut. Credentials: MD.
How much does Hal Blumenfeld, MD prescribe under Medicare Part D? ▼
In 2023, Hal Blumenfeld, MD wrote 239 Medicare Part D claims totaling $79K in drug costs for 36 beneficiaries.
What is Hal Blumenfeld, MD's Medicare quality score? ▼
Hal Blumenfeld, MD has a CMS MIPS Final Score of 73.6/100 (Quality: 75.8, Cost: 51.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Hal Blumenfeld, MD located? ▼
Hal Blumenfeld, MD is located at 40 TEMPLE ST, New Haven, CT, 06510. Phone: (203) 785-4085.
What is Hal Blumenfeld, MD's NPI number? ▼
Hal Blumenfeld, MD's National Provider Identifier (NPI) is 1982687109, issued on 11/22/2005.
Does Hal Blumenfeld, MD prescribe more brand-name or generic drugs? ▼
Hal Blumenfeld, MD's prescribing is 23% brand-name and 77% generic drugs by claim count, with $68K in brand drug costs.
How many Neurology Physician providers are there in the US? ▼
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Hal Blumenfeld, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Hal Blumenfeld, MD's most frequently prescribed drugs include Levetiracetam, Lamotrigine, Levetiracetam Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hal Blumenfeld, MD accept Medicare? ▼
Hal Blumenfeld, MD appears in CMS Medicare data with 239 Part D claims and 36 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hal Blumenfeld, MD's credentials? ▼
Hal Blumenfeld, MD's NPI is 1982687109 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.