DR. NAUMAN A DIWAN MD
NPI 1609802057
Internal Medicine in Hamilton, NJ

Active since June 25, 2006PECOS EnrolledAccepts Medicare Assignment
95.77/100
CMS Quality Rating
1445 WHITEHORSE MERCERVILLE RD STE 103, HAMILTON, NJ 08619(609) 587-6661(609) 528-8891 Get Directions Write a Review

NPPES record last updated: April 30, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 30, 2021, Apr 4, 2019 (2 updates tracked since 2019).

About Dr. Nauman A Diwan Md NPPES

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

DR. NAUMAN A DIWAN MD (NPI 1609802057) is an individual internal medicine provider in Hamilton, New Jersey, licensed in New Jersey (25MA06535300) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with University Medical Center Of Princeton At Plainsboro, and is a graduate of Other (1989).

NPPES Registry Identity

NPI1609802057
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. NAUMAN A DIWANCredential: MD
Location Address1445 WHITEHORSE MERCERVILLE RD STE 103Hamilton, NJ 08619-3834
Mailing Address1235 Whitehorse Mercerville Rd Ste 306Hamilton, NJ 08619-3810 · (609) 581-9000 · Fax (609) 585-7228
Fax(609) 528-8891
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateJune 25, 2006
Last NPPES UpdateApril 30, 20212 updates tracked since enumeration
NPPES CertifiedApril 30, 2021
NPI 1609802057 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 NJ · 25MA06535300
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 ListedLegal MedicineTaxonomy 173000000X · License 25MA06535300 (NJ)
1445 WHITEHORSE MERCERVILLE RD STE 103, Hamilton, NJ 08619

Other Identifiers 1

Other1346499217NJ · Npi

Accepted 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

Dr. Nauman A Diwan Md 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 ID5294776688
PECOS Enrollment IDI20050516000829
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 7

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 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.
263 services140 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.
57 services57 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.
53 services52 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.
48 services48 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.
44 services38 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
15 services15 patients

Hospital Affiliations CMS Care Compare 4

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

University Medical Center Of Princeton At Plainsboro

Acute Care Hospitals · Plainsboro, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310010
LocationOne-Five Plainsboro RoadPlainsboro, NJ 08536 · Middlesex County
Emergency services Birthing friendly

Capital Health Medical Center - Hopewell

Acute Care Hospitals · Pennington, NJ
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310044
LocationOne Capital WayPennington, NJ 08534 · Mercer County
Emergency services Birthing friendly

Capital Health Regional Medical Center

Acute Care Hospitals · Trenton, NJ
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310092
Location750 Brunswick AveTrenton, NJ 08638 · Mercer County
Emergency services

Robert Wood Johnson University Hospital At Hamilton

Acute Care Hospitals · Hamilton, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310110
LocationOne Hamilton Health PlaceHamilton, NJ 08690 · Mercer County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08619 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
$140.34 typical visit price
range $61.59 – $185.05
Typical copayment $35.08 (range $15.39 – $46.26)
Most-billed visit code 99204
Established Patient
$107.94 typical visit price
range $20.08 – $150.98
Typical copayment $26.98 (range $5.02 – $37.74)
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.

95.77/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality76.75
Promoting Interoperability100
Improvement Activities40

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
13 suppliers26 claims59 services$5.78 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 suppliers13 claims13 services$56.05 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier11 claims11 services$13.76 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
2 suppliers14 claims14 services$211.04 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 3

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

Family Medicine
1445 WHITEHORSE MERCERVILLE RD STE 103
HAMILTON, NJ 08619
Internal Medicine
1445 WHITEHORSE MERCERVILLE RD STE 103
HAMILTON, NJ 08619
Internal Medicine
1445 WHITEHORSE MERCERVILLE RD STE 103
HAMILTON, NJ 08619

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 Nauman Diwan's NPI number?

The NPI number for Nauman Diwan is 1609802057. It was assigned to this individual provider in the NPPES registry on June 25, 2006.

Where is Nauman Diwan located?

Nauman Diwan practices at 1445 Whitehorse Mercerville Rd Ste 103, Hamilton, NJ 08619. The listed phone number is (609) 587-6661.

What is Nauman Diwan's specialty?

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

Is Nauman Diwan enrolled in Medicare?

Yes. Nauman Diwan 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.

What insurance does Nauman Diwan accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Nauman Diwan 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 Nauman Diwan affiliated with any hospitals?

According to CMS data, Nauman Diwan is affiliated with University Medical Center Of Princeton At Plainsboro, Capital Health Medical Center - Hopewell, Capital Health Regional Medical Center and Robert Wood Johnson University Hospital At Hamilton.

When was this NPI record last updated?

The NPPES record for Nauman Diwan was last updated on April 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.