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JOHN SENEKA RAJAPAKSE M.D.
NPI 1639377914
Internal Medicine in Perth Amboy, NJ

Active since July 06, 2007PECOS EnrolledAccepts Medicare AssignmentCLIA 31D2031785 · Waiver
89.81/100
CMS Quality Rating
495 NEW BRUNSWICK AVE, PERTH AMBOY, NJ 08861(732) 442-4422(732) 442-3577 Get Directions Write a Review

NPPES record last updated: November 26, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John Seneka Rajapakse M.d. NPPES

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

JOHN SENEKA RAJAPAKSE M.D. (NPI 1639377914) is an individual internal medicine provider in Perth Amboy, New Jersey, licensed in New Jersey (25MA08277300) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through October 26, 2027, and is affiliated with Raritan Bay Medical Center.

NPPES Registry Identity

NPI1639377914
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJOHN SENEKA RAJAPAKSECredential: M.D.
Location Address495 NEW BRUNSWICK AVEPerth Amboy, NJ 08861-3653
Mailing Address495 New Brunswick AvePerth Amboy, NJ 08861-3653 · (732) 442-4422 · Fax (732) 442-3577
Phone(732) 442-4422
Fax(732) 442-3577
Sole ProprietorYes
Medical School CMSOtherGraduated 2003
Enumeration DateJuly 6, 2007
Last NPPES UpdateNovember 26, 2013
✔ NPI 1639377914 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NJ · 25MA08277300
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.
495 NEW BRUNSWICK AVE, Perth Amboy, NJ 08861
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Other Identifiers 1

Medicare PIN124071X9NNJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

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

John Seneka Rajapakse 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 ID4284713595
PECOS Enrollment IDI20080512000149
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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 31D2031785

John S Rajapakse, MD PA · Perth Amboy, NJ
Active · expires Oct 26, 2027
CLIA Number31D2031785
Laboratory TypePhysician Office
Certificate Effective DateOctober 27, 2025
Certificate Expiration DateOctober 26, 2027
Laboratory DirectorJohn S. Rajapakse
Laboratory Phone(732) 442-4422
Laboratory LocationJohn S Rajapakse, MD PA495 New Brunswick Ave, Perth Amboy, NJ 08861
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

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.

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
208 services26 patients
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.
204 services61 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.
157 services81 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
62 services62 patients
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 99305
An initial nursing facility visit per day is a service where a healthcare professional spends about 35 minutes assessing a patient's health status. This includes reviewing medical history, conducting a physical exam, and developing a care plan based on the patient's needs.
31 services19 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
19 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Raritan Bay Medical Center

Acute Care Hospitals · Perth Amboy, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310039
Location530 New Brunswick AvePerth Amboy, NJ 08861 · Middlesex County
Emergency services Birthing friendly

Jfk Medical Center

Acute Care Hospitals · Edison, NJ
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310108
Location65 James StreetEdison, NJ 08820 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08861 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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.

89.81/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality86.11
Promoting Interoperability100
Improvement Activities40
Cost63.25

Reported Quality Measures

Breast Cancer Screening
64%308 patients3/55-star benchmark: 93%
Controlling High Blood Pressure
82%702 patients4/55-star benchmark: 91%
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
Lower rates are better for this measure.
46%218 patients3/55-star benchmark: 98%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
97%1,378 patients4/55-star benchmark: 100%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
67%1,383 patients3/55-star benchmark: 97%
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
27%5,096 patients2/55-star benchmark: 61%
Provide Patients Electronic Access to Their Health Information
100%1,384 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
8 suppliers18 claims66 services$6.28 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
6 suppliers15 claims27 services$0.97 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
2 suppliers11 claims11 services$40.91 avg. paid by Medicare
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613
DME-Drugs Administered Through DME · category DG006N
4 suppliers11 claims2,872 services$0.04 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

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOHN S. RAJAPAKSE, MD PA
Internal Medicine
495 NEW BRUNSWICK AVE
PERTH AMBOY, NJ 08861
Middlesex County (732) 442-4422

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 John Rajapakse's NPI number?

The NPI number for John Rajapakse is 1639377914. It was assigned to this individual provider in the NPPES registry on July 6, 2007.

Where is John Rajapakse located?

John Rajapakse practices at 495 New Brunswick Ave, Perth Amboy, NJ 08861. The listed phone number is (732) 442-4422.

What is John Rajapakse's specialty?

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

Is John Rajapakse enrolled in Medicare?

Yes. John Rajapakse 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.

Does John Rajapakse hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 31D2031785) is associated with this NPI, valid through October 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does John Rajapakse accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list John Rajapakse 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 John Rajapakse affiliated with any hospitals?

According to CMS data, John Rajapakse is affiliated with Raritan Bay Medical Center and Jfk Medical Center.

When was this NPI record last updated?

The NPPES record for John Rajapakse was last updated on November 26, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.