Walter Astorne, MD, FACP
NPI 1518177500 · Critical Care Medicine (Internal Medicine) Physician · Marietta, GA
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walter Astorne, MD, FACP is a Critical Care Medicine (Internal Medicine) Physician provider in Marietta, GA (NPI 1518177500).
Provider details
- NPI number
- 1518177500
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, FACP
- Sex
- Male
- Sole proprietor
- No
- License
- 4301085400 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
108 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 88 | $214 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 20 | $143 |
Typical Medicare-allowed amounts for these services range $143–$214 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$71 across 2 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
Additional practice locations (1)
- 900 E Broadway AveBismarck, ND 58501-4520Phone: (701) 530-7000
Registry dates
- Enumerated
- 2007-05-22
- Last updated
- 2019-09-27
Frequently asked questions
- What is Walter Astorne's NPI number?
- Walter Astorne's National Provider Identifier (NPI) is 1518177500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Astorne's specialty?
- Walter Astorne is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Astorne located?
- Walter Astorne's practice location on file with NPPES is 55 Whitcher St Ne Ste 160, Marietta, GA 30060-1160.
- What is Walter Astorne's phone number?
- The practice phone number listed in the NPPES registry for Walter Astorne is (770) 422-1372.
- Does Walter Astorne accept Medicare?
- Walter Astorne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walter Astorne's NPI active?
- Yes — Walter Astorne's NPI (1518177500) is active in the NPPES registry as of the last update on 2019-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.