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MARIAH ROBERTSON M.D.
NPI 1639556590
Internal Medicine in Baltimore, MD

Active since April 29, 2015PECOS Enrolled
86.79/100
CMS Quality Rating
4940 EASTERN AVE, BALTIMORE, MD 21224(410) 550-0535(410) 550-0491 Get Directions Write a Review

NPPES record last updated: October 5, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 5, 2022, Feb 18, 2019 (2 updates tracked since 2019).

About Mariah Robertson M.d. NPPES

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

MARIAH ROBERTSON M.D. (NPI 1639556590) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D85250) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of University Of Missouri, Columbia School Of Medicine (2014).

NPPES Registry Identity

NPI1639556590
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARIAH ROBERTSONCredential: M.D.
Location Address4940 EASTERN AVEBaltimore, MD 21224-2735
Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004
Phone(410) 550-0535
Fax(410) 550-0491
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Columbia School Of MedicineGraduated 2014
Enumeration DateApril 29, 2015
Last NPPES UpdateOctober 5, 20222 updates tracked since enumeration
NPPES CertifiedOctober 5, 2022
✔ NPI 1639556590 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 · D85250
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.
4940 EASTERN AVE, Baltimore, MD 21224
Open in Google Maps ↗

Other Names 1

Former Name (1)Mariah Dewsnap-dreisinger M.d.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mariah Robertson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9032439682
PECOS Enrollment IDI20180813000352
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 3

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.

Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 99350
An established patient home visit is a service where a healthcare professional visits a patient's home for a check-up or treatment. The visit typically lasts for about an hour. This service is especially beneficial for patients who may have difficulty traveling to a healthcare facility.
81 services58 patients
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349
An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.
76 services51 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
23 services23 patients

Hospital Affiliations CMS Care Compare 2

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

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210009
Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County
Emergency services Birthing friendly

Johns Hopkins Bayview Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210029
Location4940 Eastern AvenueBaltimore, MD 21224 · Baltimore City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21224 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.79/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality86.46
Promoting Interoperability97
Improvement Activities40
Cost72

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Powered pressure reducing mattress overlay/pad, alternating, with pump, includes heavy duty E0181
DME-Other DME · category DE000N
2 suppliers11 claims11 services$8.33 avg. paid by Medicare
Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630
DME-Other DME · category DE000N
2 suppliers11 claims11 services$40.13 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. SUSRUTHA KOTWAL MD
Internal Medicine
4940 EASTERN AVE, MFL BLDG, WEST TOWER, 6TH FLOOR
BALTIMORE, MD 21224
Baltimore City (410) 550-5018
DR. SAMANTHA A WOLFE MD
Otolaryngology
4940 EASTERN AVE
BALTIMORE, MD 21224
Baltimore City (410) 550-2370
MARK MILEY PA-C
Physician Assistant
4940 EASTERN AVE
BALTIMORE, MD 21224
Baltimore City (410) 550-9227
REID C. WILKINS MD
Pathology (Anatomic Pathology & Clinical Pathology)
4940 EASTERN AVE
BALTIMORE, MD 21224
Baltimore City (410) 550-5568
DEREK MASON MD, MPH
Student in an Organized Health Care Education/Training Program
4940 EASTERN AVE
BALTIMORE, MD 21224
Baltimore City (410) 550-0100
RUCHITA SUDHIR PENDSE MD
Obstetrics & Gynecology (Gynecology)
4940 EASTERN AVE
BALTIMORE, MD 21224
Baltimore City (410) 550-5568
VIVIANA KATHERINE PEARSON NEONATAL NURSE PRACT
Registered Nurse (Neonatal Intensive Care)
4940 EASTERN AVE
BALTIMORE, MD 21224
Baltimore City (443) 297-7701
BRUCE ROBERT GIBSON M.D.
Surgery
4940 EASTERN AVE
BALTIMORE, MD 21224
Baltimore City (410) 550-0100

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 Mariah Robertson's NPI number?

The NPI number for Mariah Robertson is 1639556590. It was assigned to this individual provider in the NPPES registry on April 29, 2015. The provider is also known as Mariah Dewsnap-Dreisinger M.D..

Where is Mariah Robertson located?

Mariah Robertson practices at 4940 Eastern Ave, Baltimore, MD 21224. The listed phone number is (410) 550-0535.

What is Mariah Robertson's specialty?

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

Is Mariah Robertson enrolled in Medicare?

Yes. Mariah Robertson is registered in the Medicare PECOS enrollment system.

Is Mariah Robertson affiliated with any hospitals?

According to CMS data, Mariah Robertson is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.

When was this NPI record last updated?

The NPPES record for Mariah Robertson was last updated on October 5, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.