RAMASWAMY I RANGARAJAN M.D.
NPI 1841251576
Internal Medicine in Randallstown, MD

Q: What is Ramaswamy Rangarajan's NPI number?

The NPI number for Ramaswamy Rangarajan is 1841251576. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Q: What is Ramaswamy Rangarajan's specialty?

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

Active since March 31, 2006PECOS EnrolledAccepts Medicare Assignment

84.89/100

CMS Quality Rating

5401 OLD COURT RD, RANDALLSTOWN, MD 21133(410) 521-2200 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Ramaswamy I Rangarajan M.d. NPPES

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

RAMASWAMY I RANGARAJAN M.D. (NPI 1841251576) is an individual internal medicine provider in Randallstown, Maryland, licensed in Maryland (D54288) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Northwest Hospital Center, and is a graduate of Other (1992).

NPPES Registry Identity

NPI1841251576

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameRAMASWAMY I RANGARAJANCredential: M.D.

Location Address5401 OLD COURT RDRandallstown, MD 21133-5103

Mailing Address5401 Old Court Rd, Attn: CredentialingRandallstown, MD 21133-5103 · (410) 601-5524 · Fax (410) 601-8946

Phone(410) 521-2200

Sole ProprietorNo

Medical School CMSOtherGraduated 1992

Enumeration DateMarch 31, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1841251576 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 · D54288

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.

5401 OLD COURT RD, Randallstown, MD 21133

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ramaswamy I Rangarajan 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 ID3173528197

PECOS Enrollment IDI20060926000517

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.

Medicare Billing Reassignments

Medicare enrollment records show Ramaswamy Rangarajan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwest Hospital Center, Inc

Same address

Surgery of the Hand

5401 OLD COURT RD
Randallstown, MD 21133

Reassigned Medicare billing, Maryland enrollment
194 clinicians in this Medicare group

NPI 1982708228 (410) 521-2200

Sinai Hospital Of Baltimore, Inc

Same address

Obstetrics & Gynecology

5401 OLD COURT RD
Randallstown, MD 21133

Reassigned Medicare billing, Maryland enrollment
664 clinicians in this Medicare group

NPI 1396262077 (410) 701-4459

Emergency Medicine Associates PA PC

Same address

Internal Medicine

5401 OLD COURT RD
Randallstown, MD 21133

Reassigned Medicare billing, Maryland enrollment
Medicare enrollment name: Emergency Medicine Associates P.A., P.C.
729 clinicians in this Medicare group

NPI 1043175375 (330) 493-4443

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

724 services268 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.

209 services162 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

189 services182 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

21 services14 patients

Hospital Affiliations CMS Care Compare

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

Northwest Hospital Center

Acute Care Hospitals · Randallstown, MD

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210040

Location5401 Old Court RoadRandallstown, MD 21133 · Baltimore County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21133 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.

84.89/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

61.57

Promoting Interoperability

100

Improvement Activities

Cost

54.73

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.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers17 claims17 services$13.49 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers17 claims17 services$59.01 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.

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