ANDREW HAMILTON WARNER DO
NPI 1275112070
Internal Medicine in Parkville, MD

Active since April 07, 2021PECOS EnrolledAccepts Medicare Assignment
8901 CLEMENT AVE, PARKVILLE, MD 21234(410) 661-4670(410) 661-4671 Get Directions Write a Review

NPPES record last updated: February 5, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 5, 2026, Jun 15, 2021, Apr 7, 2021 (3 updates tracked since 2021).

About Andrew Hamilton Warner Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANDREW HAMILTON WARNER DO (NPI 1275112070) is an individual internal medicine provider in Parkville, Maryland, licensed in Maryland (H0103152) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Marian University College Of Osteopathic Medicine (2021).

NPPES Registry Identity

NPI1275112070
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameANDREW HAMILTON WARNERCredential: DO
Location Address8901 CLEMENT AVEParkville, MD 21234-2603
Mailing Address8901 Clement AveParkville, MD 21234-2603 · (410) 661-4670 · Fax (410) 661-4671
Fax(410) 661-4671
Sole ProprietorNo
Medical School CMSMarian University College Of Osteopathic MedicineGraduated 2021
Enumeration DateApril 7, 2021
Last NPPES UpdateFebruary 5, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 5, 2026
NPI 1275112070 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MD · H0103152
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
8901 CLEMENT AVE, Parkville, MD 21234

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Andrew Hamilton Warner Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID143704221
PECOS Enrollment IDI20260318000386
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21234 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 19

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
8901 CLEMENT AVE
PARKVILLE, MD 21234
Internal Medicine
8901 CLEMENT AVE
BALTIMORE, MD 21234
Family Medicine
8901 CLEMENT AVE
PARKVILLE, MD 21234
Internal Medicine
8901 CLEMENT AVE
PARKVILLE, MD 21234
Internal Medicine
8901 CLEMENT AVE
PARKVILLE, MD 21234
Internal Medicine
8901 CLEMENT AVE
PARKVILLE, MD 21234
Internal Medicine
8901 CLEMENT AVE
PARKVILLE, MD 21234
Nurse Practitioner (Family)
8901 CLEMENT AVE
PARKVILLE, MD 21234

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Andrew Warner's NPI number?

The NPI number for Andrew Warner is 1275112070. It was assigned to this individual provider in the NPPES registry on April 7, 2021.

Where is Andrew Warner located?

Andrew Warner practices at 8901 Clement Ave, Parkville, MD 21234. The listed phone number is (410) 661-4670.

What is Andrew Warner's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Andrew Warner enrolled in Medicare?

Yes. Andrew Warner is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Andrew Warner was last updated on February 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.