Dr. Steven A Marks, DO
Dr. Steven A Marks is a Pulmonary Disease Physician provider (Internal Medicine) practicing in Phoenix, AZ, registered in the NPPES registry with NPI 1528046547 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1528046547 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Steven A Marks |
| Credential | DO |
| Sex | Male |
| Practice address | Phoenix, AZ, 85032 |
| Phone | 6024413168 |
| Fax | 4802826651 |
| Enumeration date | 2006-01-09 |
| Last updated in NPPES | 2023-01-24 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RC0200X | Critical Care Medicine (Internal Medicine) Physician | Secondary | 4140 | AZ |
| 207RS0012X | Sleep Medicine (Internal Medicine) Physician | Secondary | 4140 | AZ |
| 207RP1001X | Pulmonary Disease Physician | Primary | 4140 | AZ |
DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 914441 | Medicaid | AZ | — |
Copy-ready billing details
Provider: Steven Marks, DO NPI: 1528046547 Taxonomy: 207RP1001X (Pulmonary Disease Physician) Address: Phoenix, AZ, 85032
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1588666721 | All at Home Health Care LLC | Organization | Home Health Agency | Phoenix, AZ |
| 1225019995 | Ernest Dorame | Individual | Pediatrics Physician | Phoenix, AZ |
| 1285617449 | Melinda Preston | Individual | Nurse Practitioner | Phoenix, AZ |
| 1487603569 | Vijaya Nabar | Individual | Adult Medicine Physician | Phoenix, AZ |
| 1003859240 | Stefan Mudryj | Individual | Podiatrist | Phoenix, AZ |
| 1063440907 | Drew Durbin | Individual | Internal Medicine Physician | Phoenix, AZ |
| 1275552929 | Richard Halbisch | Individual | Other Specialist/Technologist | Phoenix, AZ |
| 1306910567 | Complete Sleep Analysis LLC | Organization | Sleep Disorder Diagnostic Clinic/Center | Phoenix, AZ |
Verify this record
Cross-check NPI 1528046547 against the authoritative CMS record: view Dr. Steven A Marks on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-01-24.