JOHN A GELZHISER M.D.
NPI 1013100759
Internal Medicine in Warwick, RI

Q: What is John Gelzhiser's NPI number?

The NPI number for John Gelzhiser is 1013100759. It was assigned to this individual provider in the NPPES registry on August 27, 2007.

Q: What is John Gelzhiser's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for John Gelzhiser was last updated on August 27, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 August 27, 2007PECOS EnrolledAccepts Medicare Assignment

455 TOLL GATE RD, WARWICK, RI 02886(401) 737-7000(401) 736-4265 Get Directions Write a Review

NPPES record last updated: August 27, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About John A Gelzhiser M.d. NPPES

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

JOHN A GELZHISER M.D. (NPI 1013100759) is an individual internal medicine provider in Warwick, Rhode Island, licensed in Rhode Island (PENDING) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1013100759

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameJOHN A GELZHISERCredential: M.D.

Location Address455 TOLL GATE RDWarwick, RI 02886-2759

Mailing Address455 Toll Gate RdWarwick, RI 02886-2759 · (401) 737-7000 · Fax (401) 736-4265

Phone(401) 737-7000

Fax(401) 736-4265

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateAugust 27, 2007

✔ NPI 1013100759 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in RI · PENDING

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.

455 TOLL GATE RD, Warwick, RI 02886

Open in Google Maps ↗

Other Identifiers 3

Medicare UPINPENDINGRI

Medicare PINPENDINGRI

MedicaidPENDINGRI

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 A Gelzhiser 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 ID5799874574

PECOS Enrollment IDI20071130000567

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.

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.

283 services124 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

202 services167 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

110 services56 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

109 services88 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.

43 services41 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.

29 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02886 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

$134.17 typical visit price

range $58.57 – $177.03

Typical copayment $33.54 (range $14.64 – $44.25)

Most-billed visit code 99204

Established Patient

$103.10 typical visit price

range $18.92 – $144.38

Typical copayment $25.77 (range $4.73 – $36.09)

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.

Referred Medical Equipment & Supplies CMS DME claims 7

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

Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314

DME-Orthotic Devices · category DF000N

2 suppliers20 claims20 services$20.88 avg. paid by Medicare

Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357

DME-Orthotic Devices · category DF000N

2 suppliers20 claims20 services$8.04 avg. paid by Medicare

Alginate or other fiber gelling dressing, wound cover, sterile, pad size 16 sq. in. or less, each dressing A6196

DME-Medical/Surgical Supplies · category DA023N

2 suppliers12 claims506 services$7.13 avg. paid by Medicare

Walker, folding, wheeled, adjustable or fixed height E0143

DME-Other DME · category DE000N

1 supplier12 claims12 services$37.89 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 suppliers13 claims15 services$64.26 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

1 supplier20 claims20 services$13.21 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.

DR. STERLING LEAF MALISH M.D.

Internal Medicine