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DR. MICHAEL WELDON DIANA MD, MBA
NPI 1780001883
Emergency Medicine in Baltimore, MD

Active since March 26, 2014PECOS Enrolled
THE JOHNS HOPKINS HOSPITAL DEPARTMENT OF, 1800 ORLEANS STREET, BALTIMORE, MD 21287(410) 955-5107 Get Directions Write a Review

NPPES record last updated: June 12, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 12, 2019, Jun 14, 2018 (2 updates tracked since 2018).

About Dr. Michael Weldon Diana Md, Mba NPPES

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

DR. MICHAEL WELDON DIANA MD, MBA (NPI 1780001883) is an individual emergency medicine provider in Baltimore, Maryland, licensed in California (A153684) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780001883
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. MICHAEL WELDON DIANACredential: MD, MBA
Location AddressTHE JOHNS HOPKINS HOSPITAL DEPARTMENT OF, 1800 ORLEANS STREETBaltimore, MD 21287
Mailing Address1800 Orleans StBaltimore, MD 21287-0010
Phone(410) 955-5107
Sole ProprietorYes
Enumeration DateMarch 26, 2014
Last NPPES UpdateJune 12, 20192 updates tracked since enumeration
✔ NPI 1780001883 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A153684
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
THE JOHNS HOPKINS HOSPITAL DEPARTMENT OF, Baltimore, MD 21287
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Michael Weldon Diana Md, Mba 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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
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.

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 Michael Diana's NPI number?

The NPI number for Michael Diana is 1780001883. It was assigned to this individual provider in the NPPES registry on March 26, 2014.

Where is Michael Diana located?

Michael Diana practices at The Johns Hopkins Hospital Department Of 1800 Orleans Street, Baltimore, MD 21287. The listed phone number is (410) 955-5107.

What is Michael Diana's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Michael Diana enrolled in Medicare?

Yes. Michael Diana is registered in the Medicare PECOS enrollment system.

What insurance does Michael Diana accept?

Health plans from Oscar Insurance Company list Michael Diana as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Diana was last updated on June 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.