Gregory Diette, M.D.
NPI 1023053881 · Pulmonary Disease Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Diette, M.D. is a Pulmonary Disease Physician provider in Baltimore, MD (NPI 1023053881).
Provider details
- NPI number
- 1023053881
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D47616 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
373 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 113 | $98 |
| Test to Measure Expiratory Airflow and Volume94010 | 65 | $8 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 45 | $58 |
| Test to Measure Expiratory Airflow and Volume94010 | 43 | $27 |
| Test to Determine Lung Volumes Using Gas Dilution Or Washout94727 | 21 | $45 |
| Test for Exercise-Induced Lung Stress94618 | 19 | $22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mepolizumabbrand: Nucala | 73 | — |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 69 | 11 |
| Tiotropium Bromidebrand: Spiriva Respimat | 54 | — |
| Montelukast Sodium | 52 | 11 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 44 | 12 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 42 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$69 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-17
- Last updated
- 2013-02-12
Frequently asked questions
- What is Gregory Diette's NPI number?
- Gregory Diette's National Provider Identifier (NPI) is 1023053881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Diette's specialty?
- Gregory Diette is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Diette located?
- Gregory Diette's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Gregory Diette's phone number?
- The practice phone number listed in the NPPES registry for Gregory Diette is (410) 955-3467.
- Does Gregory Diette accept Medicare?
- Gregory Diette is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Diette's NPI active?
- Yes — Gregory Diette's NPI (1023053881) is active in the NPPES registry as of the last update on 2013-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.