2026 NPPES data Physician Assistant NPI 1790788735 PA-C
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MELISSA INZENGA, PA-C

Physician Assistant in HUDSON, New Hampshire. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 360 beneficiaries · Physician Assistant avg: 790
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
69.4014/100
▼ 14 pts below national avg 83.1 · [object Object]

What the federal data shows

MELISSA INZENGA, PA-C reported a CMS MIPS final score of 69.4014/100 — below the 83.1 national average — and filed 1,037 Medicare Part D claims in 2023.

69.4014/100
MIPS score · -14 vs avg
1K
Part D claims, 2023
89%
generic prescribing

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.

MELISSA INZENGA, PA-C's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

69 8th percentile higher than 8% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). This entry sits in this band. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

What does the federal data show about MELISSA INZENGA, PA-C?

Below national average

NPI registry status

Active

Issued 05/23/2005

NPI 1790788735

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

1,037 31% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

69.4014/100 13.698599999999999% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in New Hampshire

How Physician Assistant compares to other specialties among New Hampshire providers

New Hampshire providers

Physician Assistant share within New Hampshire

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within New Hampshire

Medicare quality performance — MIPS

MELISSA INZENGA, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average

Below national average
MIPS Final Score
69.4014/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 69.4014/100 vs national avg 83.1

0%100%National avg83%69.4%
MIPS final score (Physician Assistant) — 69.4014/100 vs national avg 83.1

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).

MELISSA INZENGA, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 208 ROBINSON RD., HUDSON, NH, 03051, with a listed phone of (603) 577-3410. NPI 1790788735 was issued on 05/23/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what INZENGA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,037 prescription claims written by this provider, covering 360 Medicare beneficiaries and totaling roughly $73K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 2.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 69.4014/100 for the 2023 performance year (Quality 55.6429, Cost 42.3618), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

208 ROBINSON RD.
HUDSON, NH 03051

Provider Details

NPI 1790788735
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 05/23/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

69.4014
Final Score
Avg: 83.1
55.6429
Quality
42.3618
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MELISSA INZENGA, PA-C 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.

MARY HITCHCOCK MEMORIAL HOSPITAL
★★★☆☆ 3/5
LEBANON, NH
Acute Care Hospitals
CMS CCN: 300003

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

MELISSA INZENGA, PA-C — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 1,037 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.

1,037
Total Claims
$73K
Total Drug Cost
360
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,983
Total Day Supply
54,676
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$51K
Generic Drug Cost
$21K
Opioid Claims
27 (2.6% rate)
Antibiotic Claims
96

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.02
Gender Split
62% female / 38% male
Age Distribution
<65: 59, 65-74: 189, 75-84: 88, 85+: 24

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What MELISSA INZENGA, PA-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Lisinopril
52
Atorvastatin Calcium
48
Levothyroxine Sodium
42
Albuterol Sulfate Hfa
Albuterol Sulfate
33
Doxycycline Monohydrate
31
Metoprolol Tartrate
25
Omeprazole
25
Duloxetine Hcl
24
Gabapentin
23
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
21

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Physician Assistant Overview

How MELISSA INZENGA, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

MELISSA INZENGA, PA-C's 1,037 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in New Hampshire

Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as INZENGA.

Compare Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is MELISSA INZENGA, PA-C's specialty?
MELISSA INZENGA, PA-C specializes in Physician Assistant and practices in HUDSON, New Hampshire. Credentials: PA-C.
How much does MELISSA INZENGA, PA-C prescribe under Medicare Part D?
In 2023, MELISSA INZENGA, PA-C wrote 1,037 Medicare Part D claims totaling $73K in drug costs for 360 beneficiaries.
What is MELISSA INZENGA, PA-C's Medicare quality score?
MELISSA INZENGA, PA-C has a CMS MIPS Final Score of 69.4014/100 (Quality: 55.6429, Cost: 42.3618). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MELISSA INZENGA, PA-C located?
MELISSA INZENGA, PA-C is located at 208 ROBINSON RD., HUDSON, NH, 03051. Phone: (603) 577-3410.
What is MELISSA INZENGA, PA-C's NPI number?
MELISSA INZENGA, PA-C's National Provider Identifier (NPI) is 1790788735, issued on 05/23/2005.
Does MELISSA INZENGA, PA-C prescribe more brand-name or generic drugs?
MELISSA INZENGA, PA-C's prescribing is 11% brand-name and 89% generic drugs by claim count, with $51K in brand drug costs.
Does MELISSA INZENGA, PA-C prescribe opioids?
Yes, MELISSA INZENGA, PA-C had 27 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does MELISSA INZENGA, PA-C prescribe most often?
Based on 2023 Medicare Part D data, MELISSA INZENGA, PA-C's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELISSA INZENGA, PA-C accept Medicare?
MELISSA INZENGA, PA-C appears in CMS Medicare data with 1,037 Part D claims and 360 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA INZENGA, PA-C's credentials?
MELISSA INZENGA, PA-C's NPI is 1790788735 with credentials PA-C. 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

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