Dr. Mark O'Brien Peeler, MD
Dr. Mark O'Brien Peeler is a Surgery Physician provider (Surgery) practicing in Annapolis, MD, registered in the NPPES registry with NPI 1316931421 since 2005. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1316931421 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark O'Brien Peeler |
| Credential | MD |
| Sex | Male |
| Practice address | Annapolis, MD, 21401 |
| Phone | 4102661188 |
| Fax | 4102669466 |
| Enumeration date | 2005-09-02 |
| Last updated in NPPES | 2011-01-24 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | D0056208 | MD |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 60854002 | Other | — | BCBS |
| 7413170 | Other | — | AETNA PPO |
| 243601900 | Medicaid | MD | — |
| 3330967 | Other | — | AETNA HMO |
| 383406 | Other | — | MAMSI |
| J2120001 | Other | — | BCBS |
| 201244000 | Other | — | FEDERAL WORKMANS COMP |
| 60854004 | Other | — | BCBS |
| 6645368 | Other | — | CIGNA |
Copy-ready billing details
Provider: Mark Peeler, MD NPI: 1316931421 Taxonomy: 208600000X (Surgery Physician) Address: Annapolis, MD, 21401
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1366448953 | Ayanna James | Individual | Obstetrics & Gynecology Physician | Annapolis, MD |
| 1487652269 | Christopher Burroughs | Individual | Physician Assistant | Annapolis, MD |
| 1932108768 | Robert Crowder | Individual | Medical Physician Assistant | Annapolis, MD |
| 1518965300 | Elizabeth Montgomery | Individual | Adult Health Nurse Practitioner | Annapolis, MD |
| 1306845375 | Patrick Canan | Individual | Family Medicine Physician | Annapolis, MD |
| 1487654976 | Tana Yates | Individual | Surgery Physician | Annapolis, MD |
| 1902806409 | Robert Eden | Individual | Family Medicine Physician | Annapolis, MD |
| 1285636092 | Daina Pack | Individual | Diagnostic Radiology Physician | Annapolis, MD |
Verify this record
Cross-check NPI 1316931421 against the authoritative CMS record: view Dr. Mark O'Brien Peeler 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
Is NPI 1316931421 active?
How do I verify Mark Peeler's NPI record?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-01-24.