DR. ARTHUR FRANCIS SANTIAGO M.D.
NPI 1003860669
Internal Medicine - Nephrology in Rahway, NJ

Q: What is Arthur Santiago's NPI number?

The NPI number for Arthur Santiago is 1003860669. It was assigned to this individual provider in the NPPES registry on May 19, 2006.

Q: What is Arthur Santiago's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Arthur Santiago was last updated on December 18, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since May 19, 2006PECOS EnrolledAccepts Medicare Assignment

81.85/100

CMS Quality Rating

307 GROVE ST, RAHWAY, NJ 07065(732) 382-3390 Get Directions Write a Review

NPPES record last updated: December 18, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Arthur Francis Santiago M.d. NPPES

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

DR. ARTHUR FRANCIS SANTIAGO M.D. (NPI 1003860669) is an individual nephrology provider in Rahway, New Jersey, licensed in New Jersey (MA052276) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and is a graduate of Js Weill Medical College, Cornell University (1983).

NPPES Registry Identity

NPI1003860669

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. ARTHUR FRANCIS SANTIAGOCredential: M.D.

Location Address307 GROVE STRahway, NJ 07065-2525

Mailing Address307 Grove StRahway, NJ 07065-2525 · (732) 382-3390

Phone(732) 382-3390

Sole ProprietorNo

Medical School CMSJs Weill Medical College, Cornell UniversityGraduated 1983

Enumeration DateMay 19, 2006

Last NPPES UpdateDecember 18, 2015

✔ NPI 1003860669 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in NJ · MA052276

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

307 GROVE ST, Rahway, NJ 07065

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Other Identifiers 2

Medicare UPINE53462NJ

Medicare ID-Type Unspecified468550ULCNJ

Accepted Insurance

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

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

Dr. Arthur Francis Santiago 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 ID7012941644

PECOS Enrollment IDI20050927000156

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 Reassignment

Medicare enrollment records show Arthur Santiago reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rahway Medical And Nephrology P.A.

Same address

Nephrology

307 GROVE ST
Rahway, NJ 07065

Reassigned Medicare billing, New Jersey enrollment

NPI 1710096920 (732) 382-3390

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 15

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.

774 services189 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.

370 services181 patients

Dialysis services, 1 physician visit per month (20 years or older) 90962

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys canâ€™t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.

151 services19 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

120 services104 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

110 services35 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.

82 services39 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

70 services37 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.

63 services49 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.

46 services38 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.

46 services12 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

32 services32 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.

17 services17 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

15 services13 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

12 services12 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

Morristown Medical Center

Acute Care Hospitals · Morristown, NJ

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310015

Location100 Madison AveMorristown, NJ 07960 · Morris County

Emergency services Birthing friendly

Robert Wood Johnson University Hospital At Rahway

Acute Care Hospitals · Rahway, NJ

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310024

Location865 Stone StRahway, NJ 07065 · Union County

Emergency services

Trinitas Regional Medical Center

Acute Care Hospitals · Elizabeth, NJ

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310027

Location225 Williamson StreetElizabeth, NJ 07207 · Union 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 07065 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.

81.85/100

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

Individually scored

Quality

85.75

Improvement Activities

Cost

41.84

Reported Quality Measures

Breast Cancer Screening

68%283 patients3/55-star benchmark: 93%

Controlling High Blood Pressure

72%493 patients4/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

100%1,622 patients5/55-star benchmark: 100%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

37%628 patients3/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 100% · 676 patients

Patients screened: 100% · 676 patients

100%54 patients5/55-star benchmark: 100%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 5% · 506 patients

Patients totalRate: 9% · 506 patients

9%506 patients4/55-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 5

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

10 suppliers49 claims129 services$6.56 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

6 suppliers19 claims24 services$1.10 avg. paid by Medicare

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

DME-Oxygen and Supplies · category DC000N

1 supplier11 claims11 services$13.80 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

3 suppliers23 claims23 services$54.16 avg. paid by Medicare

Mycophenolate mofetil, oral, 250 mg J7517

Treatment-Treatment - Miscellaneous · category RX029N

1 supplier11 claims1,980 services$0.18 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.

RAHWAY MEDICAL AND NEPHROLOGY P.A.

Internal Medicine (Nephrology)

307 GROVE ST
RAHWAY, NJ 07065

Union County (732) 382-3390

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 Arthur Santiago's NPI number?

The NPI number for Arthur Santiago is 1003860669. It was assigned to this individual provider in the NPPES registry on May 19, 2006.

Where is Arthur Santiago located?

Arthur Santiago practices at 307 Grove St, Rahway, NJ 07065. The listed phone number is (732) 382-3390.

What is Arthur Santiago's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Arthur Santiago enrolled in Medicare?

Yes. Arthur Santiago 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.

Which organization bills Medicare for Arthur Santiago's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Arthur Santiago reassigns Medicare benefits to Rahway Medical And Nephrology P.A. (Rahway, NJ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Arthur Santiago's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Arthur Santiago accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Arthur Santiago 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 Arthur Santiago affiliated with any hospitals?

According to CMS data, Arthur Santiago is affiliated with Morristown Medical Center, Robert Wood Johnson University Hospital At Rahway, Trinitas Regional Medical Center and Jfk Medical Center.

When was this NPI record last updated?

The NPPES record for Arthur Santiago was last updated on December 18, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.