David Mcdonough, M.D.
NPI 1295866341 · Internal Medicine Physician · Tustin, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Mcdonough, M.D. is a Internal Medicine Physician provider in Tustin, CA (NPI 1295866341).
Provider details
- NPI number
- 1295866341
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G73043 (CA)
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
19 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
106 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 106 | $194 |
Typical Medicare-allowed amounts for these services range $194–$194 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tirzepatidebrand: Mounjaro | 349 | 57 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 33 | — |
| Gabapentin | 30 | — |
| Valacyclovir Hclbrand: Valacyclovir | 27 | — |
| Allopurinol | 21 | — |
| Diphenhydramine Hcl | 17 | — |
| Rosuvastatin Calcium | 17 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$363 across 17 records (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
- 2007-03-08
- Last updated
- 2024-04-11
- Certified
- 2024-04-11
Frequently asked questions
- What is David Mcdonough's NPI number?
- David Mcdonough's National Provider Identifier (NPI) is 1295866341, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Mcdonough's specialty?
- David Mcdonough is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Mcdonough located?
- David Mcdonough's practice location on file with NPPES is 12721 Newport Ave Ste 3, Tustin, CA 92780-8031.
- What is David Mcdonough's phone number?
- The practice phone number listed in the NPPES registry for David Mcdonough is (310) 288-5933.
- Does David Mcdonough accept Medicare?
- David Mcdonough is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Mcdonough's NPI active?
- Yes — David Mcdonough's NPI (1295866341) is active in the NPPES registry as of the last update on 2024-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.