NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1639453988 P.A.
Verify on CMS → Avery Marzulla-Dulfer, P.A.
Physician Assistant 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 156,084 in Physician Assistant, 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 · 258 beneficiaries · Physician Assistant avg: 832
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
95.2/100
▲ 12 pts above national avg 83.5 · Exceptional
Industry payments
$78.16
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Avery Marzulla-Dulfer, P.A. reported a CMS MIPS final score of 95.2/100 - above the 83.5 national average - and filed 1,534 Medicare Part D claims in 2024.
- 95.2/100
- MIPS score · +12 vs avg
- 2K
- Part D claims, 2024
- 76%
- generic prescribing
- $78.16
- industry payments (Sunshine Act)
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.
Federal trust snapshot
What official records show about Avery Marzulla-Dulfer, P.A.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1639453988), first enumerated 10/05/2011.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,534 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 95.2/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$78.16 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1639453988 · Physician Assistant
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1639453988
- ENUM-MID 2011
- TAX-MEGA 156K Physician Assistant
- MIPS-ELITE 95.2/100
- RX-MID 1,534
- BOOK-LIGHT 2,290 in Connecticut
- PHOTO-FINISH Elaine Abdulky · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Marzulla-Dulfer …
Marzulla-Dulfer · this provider
95.2 MIPS pts
- Christina Bellef…
Christina Bellefeuille
95.2 MIPS pts
- Elaine Abdulky ·…
Elaine Abdulky
95.2 MIPS pts
- Madeline Adeniyi…
Madeline Adeniyi
95.2 MIPS pts
- Lyndsey Armstron…
Lyndsey Armstrong
95.2 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Avery Marzulla-Dulfer, P.A.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
95 ≥ 78th percentile 78% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Avery Marzulla-Dulfer, P.A. sits
This provider among physician assistant peers
Across the 26,497 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Avery Marzulla-Dulfer, P.A. writes more Part D claims than 89% of them and scores higher on MIPS quality than 79% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Avery Marzulla-Dulfer, P.A.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Avery Marzulla-Dulfer, P.A.?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
1,534 84% vs specialty avg
MIPS final score
95.2/100 11.7 pts vs avg
Specialty distribution in Connecticut
How Physician Assistant compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Avery Marzulla-Dulfer, P.A.'s 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 95.2/100
- vs 83.5 national avg · 2023 performance year
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 | 1639453988 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | P.A. |
| Gender | Female |
| NPI Issued | 10/05/2011 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
95.2197
Final Score
Measured-score avg: 83.5
84.6968
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Avery Marzulla-Dulfer, P.A. 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.
Cayuga Medical Center AT Ithaca
★★★☆☆ 3/5
Ithaca, NY
Acute Care Hospitals
CMS CCN: 330307
Cayuga Medical Associates PC
Ithaca, NY
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 Avery Marzulla-Dulfer, P.A.. Source: openpaymentsdata.cms.gov.
Total received
$78
Largest payer
GENZYME CORPORATION
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
Avery Marzulla-Dulfer, P.A. - brand share 24.0%
Physician Assistant average
24% brand-name claims vs 76% generic, on 1,534 2024 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 2024.
1,534
Total Claims
$2.5M
Total Drug Cost
258
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,216
- Total Day Supply
- 61,663
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $2.2M
- Generic Drug Cost
- $232K
- Opioid Claims
- 117 (7.6% rate)
- Antibiotic Claims
- 48
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 2.21
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 28, 65-74: 113, 75-84: 86, 85+: 31
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Avery Marzulla-Dulfer, P.A. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Eliquis
Eliquis
76 claims
- Warfarin Sodium
Warfarin Sodium
70 claims
- Letrozole
Letrozole
68 claims
- Levothyroxine Sodium
Levothyroxine Sodium
61 claims
- Anastrozole
Anastrozole
51 claims
- Oxycodone Hcl
Oxycodone Hcl
49 claims
- Prednisone
Prednisone
47 claims
- Hydroxyurea
Hydroxyurea
46 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 76 |
| Warfarin Sodium | 70 |
| Letrozole | 68 |
| Levothyroxine Sodium | 61 |
| Anastrozole | 51 |
| Oxycodone Hcl | 49 |
| Prednisone | 47 |
| Hydroxyurea | 46 |
| Gabapentin | 36 |
| Dexamethasone | 34 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Avery Marzulla-Dulfer, P.A. fits within the Physician Assistant landscape nationally.
156,084
Physician Assistant Providers in US
56
States with Physician Assistant
832
Avg Claims per Provider
Avery Marzulla-Dulfer, P.A.'s 1,534 claims are above the specialty average of 832.
Nationwide Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Marzulla-Dulfer, both outside Connecticut so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (95.2 here).
Same NPPES enumeration year (2011)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physician Assistant Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Marzulla-Dulfer.
One of 2,290 Physician Assistant providers enrolled in Connecticut, 5 are shown here.
Gazang Abdulla
PA-C
Hartford, CT
Jill Aboulian
PA-C
Cheshire, CT
Celin Abraham
PA-C
Waterbury, CT
Louisa Acca
PA-C
Hartford, CT
Julia Accorsini
PA-C
New Haven, CT
Compare Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Avery Marzulla-Dulfer, P.A.'s specialty? ▼
Avery Marzulla-Dulfer, P.A. specializes in Physician Assistant and practices in New Haven, Connecticut. Credentials: P.A..
How much does Avery Marzulla-Dulfer, P.A. prescribe under Medicare Part D? ▼
In 2024, Avery Marzulla-Dulfer, P.A. wrote 1,534 Medicare Part D claims totaling $2.5M in drug costs for 258 beneficiaries.
What is Avery Marzulla-Dulfer, P.A.'s Medicare quality score? ▼
Avery Marzulla-Dulfer, P.A. has a CMS MIPS Final Score of 95.2/100 (Quality: 84.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Avery Marzulla-Dulfer, P.A. located? ▼
Avery Marzulla-Dulfer, P.A. is located at 35 YORK ST, New Haven, CT, 06519. Phone: (203) 688-4242.
What is Avery Marzulla-Dulfer, P.A.'s NPI number? ▼
Avery Marzulla-Dulfer, P.A.'s National Provider Identifier (NPI) is 1639453988, issued on 10/05/2011.
Does Avery Marzulla-Dulfer, P.A. prescribe more brand-name or generic drugs? ▼
Avery Marzulla-Dulfer, P.A.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $2.2M in brand drug costs.
Does Avery Marzulla-Dulfer, P.A. prescribe opioids? ▼
Yes, Avery Marzulla-Dulfer, P.A. had 117 opioid claims in 2024 with an opioid prescribing rate of 7.6%.
How many Physician Assistant providers are there in the US? ▼
There are 156,084 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 832 Medicare Part D claims per year.
What drugs does Avery Marzulla-Dulfer, P.A. prescribe most often? ▼
Based on 2024 Medicare Part D data, Avery Marzulla-Dulfer, P.A.'s most frequently prescribed drugs include Eliquis, Warfarin Sodium, Letrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Avery Marzulla-Dulfer, P.A. accept Medicare? ▼
Avery Marzulla-Dulfer, P.A. appears in CMS Medicare data with 1,534 Part D claims and 258 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Avery Marzulla-Dulfer, P.A.'s credentials? ▼
Avery Marzulla-Dulfer, P.A.'s NPI is 1639453988 with credentials P.A.. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.