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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

NISA M MARUTHUR M.D.
NPI 1356412126
Internal Medicine in Baltimore, MD

Active since November 13, 2006PECOS EnrolledAccepts Medicare Assignment
22 S GREENE ST, BALTIMORE, MD 21201(410) 328-8040(410) 328-9191 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Nisa M Maruthur M.d. NPPES

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

NISA M MARUTHUR M.D. (NPI 1356412126) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D0064363) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Northwestern University Feinberg Medical School (2003).

NPPES Registry Identity

NPI1356412126
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameNISA M MARUTHURCredential: M.D.
Location Address22 S GREENE STBaltimore, MD 21201-1544
Mailing AddressPo Box 64442Baltimore, MD 21264-4264 · (410) 328-8040 · Fax (410) 328-9191
Phone(410) 328-8040
Fax(410) 328-9191
Sole ProprietorNo
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 2003
Enumeration DateNovember 13, 2006
Last NPPES UpdateAugust 11, 2026
NPPES CertifiedAugust 11, 2026
✔ NPI 1356412126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D0064363
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.
Also ListedHospitalistTaxonomy 208M00000X · License D0064363 (MD)
22 S GREENE ST, Baltimore, MD 21201
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Other Identifiers 1

Medicaid011684000MD

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

Nisa M Maruthur M.d. 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 ID4385643980
PECOS Enrollment IDI20061208000251
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 6

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
41 services35 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.
34 services34 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
33 services18 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
28 services19 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
14 services14 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 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.

DR. LEONARD ANANG SOWAH M.D.
Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Baltimore City (410) 706-4619
VISHAL BHATNAGAR MD
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, MEDICINE, N3E09
BALTIMORE, MD 21201
Baltimore City (410) 328-6110
NANCE J FOX P.A.-C
Physician Assistant (Medical)
22 S GREENE ST, G2K36
BALTIMORE, MD 21201
Baltimore City (410) 328-1170
HILARY TAMARA WOLF MD
Pediatrics (Adolescent Medicine)
22 S GREENE ST
BALTIMORE, MD 21201
Baltimore City (410) 328-7373
MS. LINDSAY BREAM O'MEARA CRNP
Nurse Practitioner (Acute Care)
22 S GREENE ST, SUITE S4D07
BALTIMORE, MD 21201
Baltimore City (410) 328-3365
NORA T OLIVER M.D., M.P.H.
Student in an Organized Health Care Education/Training Program
22 S GREENE ST, N3E09
BALTIMORE, MD 21201
Baltimore City (410) 328-5756
SHOSHANA JO WEINER
Internal Medicine
22 S GREENE ST
BALTIMORE, MD 21201
Baltimore City (617) 214-1332
JENNA VANLIERE CANZONIERO M.D.
Internal Medicine
22 S GREENE ST, N3E09
BALTIMORE, MD 21201
Baltimore City (410) 328-5756

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 Nisa Maruthur's NPI number?

The NPI number for Nisa Maruthur is 1356412126. It was assigned to this individual provider in the NPPES registry on November 13, 2006.

Where is Nisa Maruthur located?

Nisa Maruthur practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 328-8040.

What is Nisa Maruthur's specialty?

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

Is Nisa Maruthur enrolled in Medicare?

Yes. Nisa Maruthur 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.

Is Nisa Maruthur affiliated with any hospitals?

According to CMS data, Nisa Maruthur is affiliated with Johns Hopkins Hospital, The.

When was this NPI record last updated?

The NPPES record for Nisa Maruthur was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days 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.