NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1801851365 MD
Verify on CMS → Irina Petrache, MD
Pulmonary Disease Physician in Denver, Colorado.
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
378
Medicare Part D claims · 47 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Irina Petrache, MD filed 378 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Denver, Colorado, prescribing 51% generic.
- 378
- Part D claims, 2023
- 51%
- 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.
Irina Petrache, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
378 Top 43% higher than 57% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Irina Petrache, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Irina Petrache, MD?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
378 74% vs specialty avg
Specialty distribution in Colorado
How Pulmonary Disease Physician compares to other specialties among Colorado providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pulmonary Disease Physician. Verify directly:
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).
Irina Petrache, MD appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding MD credentials at 1400 JACKSON ST, Denver, CO, 80206, with a listed phone of (303) 388-4461. NPI 1801851365 was issued on 04/19/2006.
Medicare Part D records for calendar year 2023 show 378 prescription claims written by this provider, covering 47 Medicare beneficiaries and totaling roughly $147K in drug spend, split 49% brand-name and 51% generic by claim count.
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 | 1801851365 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/19/2006 |
Hospital and facility affiliations
Facilities where Irina Petrache, 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.
National Jewish Health
Denver, CO
Acute Care Hospitals
CMS CCN: 060107
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 · Above average
Irina Petrache, MD - brand share 49.0%
Pulmonary Disease Physician average
49% brand-name claims vs 51% generic, on 378 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.
378
Total Claims
$147K
Total Drug Cost
47
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 660
- Total Day Supply
- 18,758
- Brand vs Generic
- 49% brand / 51% generic
- Brand Drug Cost
- $141K
- Generic Drug Cost
- $6K
- Antibiotic Claims
- 57
Patient Demographics
- Average Patient Age
- 70.2 years
- Avg HCC Risk Score
- 1.79
- Gender Split
- 62% female / 38% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Irina Petrache, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Azithromycin
Azithromycin
53 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
22 claims
- Prednisone
Prednisone
22 claims
- Montelukast Sodium 20
Montelukast Sodium
20 claims
- Spiriva Respimat 20
Spiriva Respimat
20 claims
- Trelegy Ellipta 20
Trelegy Ellipta
20 claims
- Symbicort 19
Symbicort
19 claims
- Furosemide 15
Furosemide
15 claims
| Drug | Claims |
|---|---|
| Azithromycin | 53 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 22 |
| Prednisone | 22 |
| Montelukast Sodium | 20 |
| Spiriva Respimat Tiotropium Bromide | 20 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 20 |
| Symbicort Budesonide/Formoterol Fumarate | 19 |
| Furosemide | 15 |
| Spiriva Handihaler Tiotropium Bromide | 13 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 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 Irina Petrache, MD 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
Irina Petrache, MD's 378 claims are below the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Petrache.
Dr. Neil Aggarwal
MD
Aurora, CO
Dr. Richard Albert
MD
Aurora, CO
William Alling
Pueblo, CO
Dr. Ahmad Alsaleem
M.D.
Greenwood Village, CO
Dr. Sam Ancheril
MD
Greenwood Village, CO
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 Colorado 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 Colorado
Frequently Asked Questions
What is Irina Petrache, MD's specialty? ▼
Irina Petrache, MD specializes in Pulmonary Disease Physician and practices in Denver, Colorado. Credentials: MD.
How much does Irina Petrache, MD prescribe under Medicare Part D? ▼
In 2023, Irina Petrache, MD wrote 378 Medicare Part D claims totaling $147K in drug costs for 47 beneficiaries.
Where is Irina Petrache, MD located? ▼
Irina Petrache, MD is located at 1400 JACKSON ST, Denver, CO, 80206. Phone: (303) 388-4461.
What is Irina Petrache, MD's NPI number? ▼
Irina Petrache, MD's National Provider Identifier (NPI) is 1801851365, issued on 04/19/2006.
Does Irina Petrache, MD prescribe more brand-name or generic drugs? ▼
Irina Petrache, MD's prescribing is 49% brand-name and 51% generic drugs by claim count, with $141K 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 Irina Petrache, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Irina Petrache, MD's most frequently prescribed drugs include Azithromycin, Albuterol Sulfate Hfa, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Irina Petrache, MD accept Medicare? ▼
Irina Petrache, MD appears in CMS Medicare data with 378 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Irina Petrache, MD's credentials? ▼
Irina Petrache, MD's NPI is 1801851365 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.
- 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.