NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1912019225 M.D.
Verify on CMS → Joel Wirth, M.D.
Pulmonary Disease Physician in South Portland, Maine.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,271 in Pulmonary Disease 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
639
Medicare Part D claims · 118 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
34%
generic claims · 66% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
98.1/100
▲ 15 pts above national avg 83.1 · Exceptional
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
Joel Wirth, M.D. reported a CMS MIPS final score of 98.1/100 - above the 83.1 national average - and filed 639 Medicare Part D claims in 2023.
- 98.1/100
- MIPS score · +15 vs avg
- 639
- Part D claims, 2023
- 34%
- 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.
Joel Wirth, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 11% higher than 89% 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 Joel Wirth, M.D. sits
This provider among pulmonary disease physician peers
Across the 2,676 pulmonary disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Joel Wirth, M.D. writes more Part D claims than 35% of them and scores higher on MIPS quality than 89% - placing this provider in the lower-volume, high-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 pulmonary disease physician peer from a representative sample of 60; the gold marker is Joel Wirth, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Joel Wirth, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Joel Wirth, M.D.?
High performer (top quartile)Primary specialty
Pulmonary Disease Physician
Medicare Part D claims
639 56% vs specialty avg
MIPS final score
98.1/100 15 pts vs avg
Specialty distribution in Maine
How Pulmonary Disease Physician compares to other specialties among Maine providers
Medicare quality performance, MIPS
Joel Wirth, M.D.'s 2023 MIPS final score plotted against the Pulmonary Disease Physician national average
- MIPS Final Score
- 98.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Pulmonary Disease Physician) - 98.1/100 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).
Joel Wirth, M.D. appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D. credentials at 100 FODEN ROAD, South Portland, ME, 04106, with a listed phone of (207) 828-1122. NPI 1912019225 was issued on 08/31/2006.
Medicare Part D records for calendar year 2023 show 639 prescription claims written by this provider, covering 118 Medicare beneficiaries and totaling roughly $4.1 million in drug spend, split 66% brand-name and 34% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.1/100 for the 2023 performance year (Quality 86.1), compared with the national average of 83.1.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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 | 1912019225 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/31/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Brand vs generic prescribing mix · Brand-heavy
Joel Wirth, M.D. - brand share 66.0%
Pulmonary Disease Physician average
66% brand-name claims vs 34% generic, on 639 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.
639
Total Claims
$4.1M
Total Drug Cost
118
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 847
- Total Day Supply
- 24,952
- Brand vs Generic
- 66% brand / 34% generic
- Brand Drug Cost
- $3.9M
- Generic Drug Cost
- $190K
- Antibiotic Claims
- 17
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 2.37
- Gender Split
- 71% female / 29% male
- Age Distribution
- <65: 19, 65-74: 43, 75-84: 45, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joel Wirth, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Opsumit
Opsumit
135 claims
- Tadalafil
Tadalafil
61 claims
- Sildenafil Citrate 48
Sildenafil Citrate
48 claims
- Uptravi 40
Uptravi
40 claims
- Adempas 37
Adempas
37 claims
- Trelegy Ellipta 28
Trelegy Ellipta
28 claims
- Albuterol Sulfate … 24
Albuterol Sulfate Hfa
24 claims
- Anoro Ellipta 17
Anoro Ellipta
17 claims
| Drug | Claims |
|---|---|
| Opsumit Macitentan | 135 |
| Tadalafil | 61 |
| Sildenafil Citrate | 48 |
| Uptravi Selexipag | 40 |
| Adempas Riociguat | 37 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 28 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 24 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 17 |
| Symbicort Budesonide/Formoterol Fumarate | 15 |
| Breo Ellipta Fluticasone/Vilanterol | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How Joel Wirth, M.D. fits within the Pulmonary Disease Physician landscape nationally.
9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
Joel Wirth, M.D.'s 639 claims are below the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as Wirth.
Dr. Peter Bagley
M.D.
Rockport, ME
Dr. Peter Bates
M.D.
South Portland, ME
Dr. Richard Beasley
DO
Portland, ME
Dr. George Boccia
M.D.
Augusta, ME
Dr. George Bokinsky
M.D.
South Portland, ME
Compare Pulmonary Disease 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 Maine medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pulmonary Disease 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Maine
Frequently Asked Questions
What is Joel Wirth, M.D.'s specialty? ▼
Joel Wirth, M.D. specializes in Pulmonary Disease Physician and practices in South Portland, Maine. Credentials: M.D..
How much does Joel Wirth, M.D. prescribe under Medicare Part D? ▼
In 2023, Joel Wirth, M.D. wrote 639 Medicare Part D claims totaling $4.1M in drug costs for 118 beneficiaries.
What is Joel Wirth, M.D.'s Medicare quality score? ▼
Joel Wirth, M.D. has a CMS MIPS Final Score of 98.1/100 (Quality: 86.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Joel Wirth, M.D. located? ▼
Joel Wirth, M.D. is located at 100 FODEN ROAD, South Portland, ME, 04106. Phone: (207) 828-1122.
What is Joel Wirth, M.D.'s NPI number? ▼
Joel Wirth, M.D.'s National Provider Identifier (NPI) is 1912019225, issued on 08/31/2006.
Does Joel Wirth, M.D. prescribe more brand-name or generic drugs? ▼
Joel Wirth, M.D.'s prescribing is 66% brand-name and 34% generic drugs by claim count, with $3.9M in brand drug costs.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does Joel Wirth, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Joel Wirth, M.D.'s most frequently prescribed drugs include Opsumit, Tadalafil, Sildenafil Citrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joel Wirth, M.D. accept Medicare? ▼
Joel Wirth, M.D. appears in CMS Medicare data with 639 Part D claims and 118 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joel Wirth, M.D.'s credentials? ▼
Joel Wirth, M.D.'s NPI is 1912019225 with credentials M.D.. 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.