John Clark, MD
NPI 1518936871 · Pulmonary Disease Physician · Anchorage, AK
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Clark, MD is a Pulmonary Disease Physician provider in Anchorage, AK (NPI 1518936871).
Provider details
- NPI number
- 1518936871
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 3182 (AK)
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
780 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 | 217 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 126 | $86 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 91 | $12 |
| Test to Measure Expiratory Airflow and Volume94010 | 77 | $11 |
| Test to Determine Lung Volumes Using Sensors94726 | 63 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 51 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 124 | 41 |
| Tiotropium Br/Olodaterol Hclbrand: Stiolto Respimat | 55 | 14 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 49 | 14 |
| Prednisone | 30 | 19 |
| Ipratropium/Albuterol Sulfatebrand: Combivent Respimat | 25 | — |
| Doxycycline Hyclate | 22 | 16 |
| Dupilumab |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$336 across 6 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
- 2006-03-17
- Last updated
- 2010-08-26
Frequently asked questions
- What is John Clark's NPI number?
- John Clark's National Provider Identifier (NPI) is 1518936871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Clark's specialty?
- John Clark is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Clark located?
- John Clark's practice location on file with NPPES is 3220 Providence Dr, Anchorage, AK 99508.
- What is John Clark's phone number?
- The practice phone number listed in the NPPES registry for John Clark is (907) 770-3750.
- Does John Clark accept Medicare?
- John Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Clark's NPI active?
- Yes — John Clark's NPI (1518936871) is active in the NPPES registry as of the last update on 2010-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.