MARIA M OLIVA-HEMKER M.D.
NPI 1306890801
Pediatrics - Pediatric Gastroenterology in Baltimore, MD

Q: What is Maria Oliva-hemker's NPI number?

The NPI number for Maria Oliva-hemker is 1306890801. It was assigned to this individual provider in the NPPES registry on May 20, 2006.

Q: What is Maria Oliva-hemker's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Active since May 20, 2006PECOS Enrolled

601 N CAROLINE ST, BALTIMORE, MD 21287(410) 955-8769 Get Directions Write a Review

NPPES record last updated: February 5, 2014. Verified against the NPPES registry weekly; last sync: July 19, 2026.

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About Maria M Oliva-hemker M.d. NPPES

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

MARIA M OLIVA-HEMKER M.D. (NPI 1306890801) is an individual pediatric gastroenterology provider in Baltimore, Maryland, licensed in Maryland (D39176) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1306890801

Entity TypeIndividualFemale

Primary Taxonomy2080P0206X

Provider Legal NameMARIA M OLIVA-HEMKERCredential: M.D.

Location Address601 N CAROLINE STBaltimore, MD 21287-0006

Mailing AddressPo Box 64316Baltimore, MD 21264-4316 · (410) 933-1241

Phone(410) 955-8769

Sole ProprietorNo

Enumeration DateMay 20, 2006

Last NPPES UpdateFebruary 5, 2014

✔ NPI 1306890801 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0206X

License✔ Licensed in MD · D39176

Definition

A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.

601 N CAROLINE ST, Baltimore, MD 21287

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Other Identifiers 3

Medicare PINKR41MC21MD

Medicare UPINE56051MD

Medicaid0070451200MD

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maria M Oliva-hemker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 21287 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 20

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

DANA F BOATMAN AUD

Audiologist

601 N CAROLINE ST
BALTIMORE, MD 21287

Baltimore City (410) 955-3116

JOEL I BRENNER M.D.

Pediatrics

601 N CAROLINE ST
BALTIMORE, MD 21287

Baltimore City (410) 955-5910

BENJAMIN CABALLERO M.D.

Pediatrics (Pediatric Gastroenterology)

601 N CAROLINE ST
BALTIMORE, MD 21287

Baltimore City (410) 955-8769

NANCY HESS CRAWFORD P.A.-C.

Physician Assistant

601 N CAROLINE ST, JHOC - B169
BALTIMORE, MD 21287

Baltimore City (410) 955-9400

SHARON ANN MCGRATH-MORROW M.D.

Pediatrics (Pediatric Pulmonology)

601 N CAROLINE ST
BALTIMORE, MD 21287

Baltimore City (410) 955-2000

GAIL HEFTER C.R.N.P.

Nurse Practitioner

601 N CAROLINE ST, # 7263
BALTIMORE, MD 21287

Baltimore City (410) 614-5343

WILLIAM HENDERSON D.D.S.

Dentist (Oral and Maxillofacial Surgery)

601 N CAROLINE ST
BALTIMORE, MD 21287

Baltimore City (410) 955-6662

NANCYELLEN BRENNAN C.R.N.P.

Nurse Practitioner (Family)

601 N CAROLINE ST
BALTIMORE, MD 21287

Baltimore City (410) 955-7139

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 Maria Oliva-hemker's NPI number?

The NPI number for Maria Oliva-hemker is 1306890801. It was assigned to this individual provider in the NPPES registry on May 20, 2006.

Where is Maria Oliva-hemker located?

Maria Oliva-hemker practices at 601 N Caroline St, Baltimore, MD 21287. The listed phone number is (410) 955-8769.

What is Maria Oliva-hemker's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Is Maria Oliva-hemker enrolled in Medicare?

Yes. Maria Oliva-hemker is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Maria Oliva-hemker was last updated on February 5, 2014. NPI Profile syncs with the weekly NPPES data releases published by CMS.