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DR. STEVEN J MASON M.D.
NPI 1366445603
Internal Medicine - Cardiovascular Disease in Baltimore, MD

Active since May 31, 2005PECOS Enrolled
9105 FRANKLIN SQUARE DR, STE 209, BALTIMORE, MD 21237(410) 574-1330(410) 574-2691 Get Directions Write a Review

NPPES record last updated: August 30, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Steven J Mason M.d. NPPES

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

DR. STEVEN J MASON M.D. (NPI 1366445603) is an individual cardiovascular disease provider in Baltimore, Maryland, licensed in Maryland (D0017347) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS, is affiliated with Physicians Regional Medical Center - Pine Ridge, and is a graduate of Harvard Medical School (1972).

NPPES Registry Identity

NPI1366445603
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. STEVEN J MASONCredential: M.D.
Location Address9105 FRANKLIN SQUARE DR, STE 209Baltimore, MD 21237-3958
Mailing Address1838 Greene Tree Rd, Ste 150llBaltimore, MD 21208 · (410) 602-9262 · Fax (410) 602-9276
Phone(410) 574-1330
Fax(410) 574-2691
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 1972
Enumeration DateMay 31, 2005
Last NPPES UpdateAugust 30, 2010
✔ NPI 1366445603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in MD · D0017347
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
9105 FRANKLIN SQUARE DR, Baltimore, MD 21237
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type Unspecified000L232XMD
Medicare UPIND74513MD
Medicaid430361000MD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL).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. Steven J Mason M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8224096953
PECOS Enrollment IDI20050106000723, I20150115001662
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.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
490 services482 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
130 services93 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
99 services97 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
67 services66 patients
Ultrasound of heart, follow-up 93308
A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.
17 services15 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Physicians Regional Medical Center - Pine Ridge

Acute Care Hospitals · Naples, FL
1/5 CMS rating
OwnershipProprietary
CMS Certification Number100286
Location6101 Pine Ridge RoadNaples, FL 34119 · Collier County
Emergency services

Greater Baltimore Medical Center

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210044
Location6701 North Charles StreetBaltimore, MD 21204 · Baltimore County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21237 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
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
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.

CANDICE D GRACE-LEE M.D.
Psychiatry & Neurology (Psychiatry)
9105 FRANKLIN SQUARE DR, SUITES 102/103
BALTIMORE, MD 21237
Baltimore County (443) 777-7878
DANIELLE N WELCH-BLAIR M.D.
Psychiatry & Neurology (Psychiatry)
9105 FRANKLIN SQUARE DR, SUITES 102/103
BALTIMORE, MD 21237
Baltimore County (443) 777-7878
DR. LEAH BERGMAN D.O.
Internal Medicine (Cardiovascular Disease)
9105 FRANKLIN SQUARE DR
BALTIMORE, MD 21237
Baltimore County (410) 574-1330
FRANKLIN SQUARE HOSPITAL CENTER, INC.
Psychiatric Unit
9105 FRANKLIN SQUARE DR, SUITE 102, 104
BALTIMORE, MD 21237
Baltimore County (443) 777-7878
DR. GLENN R. MEININGER M.D.
Internal Medicine (Clinical Cardiac Electrophysiology)
9105 FRANKLIN SQUARE DR, STE 209
BALTIMORE, MD 21237
Baltimore County (410) 602-9262
LETONYA MARIA SMITH C.R.N.P.
Nurse Practitioner (Family)
9105 FRANKLIN SQUARE DR, SUITE 304
BALTIMORE, MD 21237
Baltimore County (443) 777-6351
CENGIZ AYGUN M.D.
Specialist
9105 FRANKLIN SQUARE DR, STE 100
BALTIMORE, MD 21237
Baltimore County (410) 682-6800
SHELDON M TIMIN L.C.S.W.-C
Social Worker
9105 FRANKLIN SQUARE DR, SUITES 102/103
BALTIMORE, MD 21237
Baltimore County (443) 777-7878

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 Steven Mason's NPI number?

The NPI number for Steven Mason is 1366445603. It was assigned to this individual provider in the NPPES registry on May 31, 2005.

Where is Steven Mason located?

Steven Mason practices at 9105 Franklin Square Dr Ste 209, Baltimore, MD 21237. The listed phone number is (410) 574-1330.

What is Steven Mason's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Steven Mason enrolled in Medicare?

Yes. Steven Mason is registered in the Medicare PECOS enrollment system.

What insurance does Steven Mason accept?

Health plans from Florida Blue (BlueCross BlueShield FL) list Steven Mason 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.

Is Steven Mason affiliated with any hospitals?

According to CMS data, Steven Mason is affiliated with Physicians Regional Medical Center - Pine Ridge and Greater Baltimore Medical Center.

When was this NPI record last updated?

The NPPES record for Steven Mason was last updated on August 30, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.