DR. PETER KJELD SLOTWINER-NIE M.D.
NPI 1508812405
Internal Medicine - Gastroenterology in Scarsdale, NY

Q: What is Peter Slotwiner-nie's NPI number?

The NPI number for Peter Slotwiner-nie is 1508812405. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Q: What is Peter Slotwiner-nie's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since May 25, 2006PECOS Enrolled

100/100

CMS Quality Rating

688 WHITE PLAINS RD, SUITE 222, SCARSDALE, NY 10583(914) 725-9115 Get Directions Write a Review

NPPES record last updated: March 3, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Peter Kjeld Slotwiner-nie M.d. NPPES

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

DR. PETER KJELD SLOTWINER-NIE M.D. (NPI 1508812405) is an individual gastroenterology provider in Scarsdale, New York, licensed in New York (202742) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of University Of Chicago, Pritzker School Of Medicine (1993).

NPPES Registry Identity

NPI1508812405

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. PETER KJELD SLOTWINER-NIECredential: M.D.

Location Address688 WHITE PLAINS RD, SUITE 222Scarsdale, NY 10583-5059

Mailing Address688 White Plains Rd, Suite 222Scarsdale, NY 10583-5059 · (914) 725-9115

Phone(914) 725-9115

Sole ProprietorNo

Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 1993

Enumeration DateMay 25, 2006

Last NPPES UpdateMarch 3, 2008

✔ NPI 1508812405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in NY · 202742

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

688 WHITE PLAINS RD, Scarsdale, NY 10583

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Other Identifiers 3

Medicare ID-Type Unspecified763511NY

Medicaid01690826NY

Medicare UPING31258NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Peter Kjeld Slotwiner-nie M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8426041922

PECOS Enrollment IDI20040408000028

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 Peter Slotwiner-nie reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Montefiore Medical Center

7.3 mi

Anesthesiology

111 E 210TH ST
Bronx, NY 10467

Reassigned Medicare billing, New York enrollment
5,251 clinicians in this Medicare group

NPI 1063525152 (914) 378-6021

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 11

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.

165 services113 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

93 services88 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

82 services78 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.

67 services67 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

55 services52 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

42 services40 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.

24 services22 patients

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.

24 services20 patients

Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare 43251

This procedure involves the use of a thin, flexible instrument called an endoscope to visualize and remove abnormal growths, known as polyps, from the esophagus, stomach, or upper small bowel. A tool called a mechanical snare is used to safely cut and remove these growths.

15 services14 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.

15 services15 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Montefiore Medical Center

Acute Care Hospitals · Bronx, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330059

Location111 East 210th StreetBronx, NY 10467 · Bronx County

Emergency services Birthing friendly

White Plains Hospital Center

Acute Care Hospitals · White Plains, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330304

Location41 East Post R0adWhite Plains, NY 10601 · Westchester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10583 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

100/100

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

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

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.

EUGENE J. SIDOTI, JR., MD, PC

Surgery (Plastic and Reconstructive Surgery)

688 WHITE PLAINS RD, SUITE 220
SCARSDALE, NY 10583

Westchester County (914) 472-7200

JANMARIE BROWN LMFT

Marriage & Family Therapist

688 WHITE PLAINS RD
SCARSDALE, NY 10583

Westchester County (914) 725-5252

DR. GABRIELA GRASA MD

Internal Medicine (Cardiovascular Disease)

688 WHITE PLAINS RD, SUITE 201
SCARSDALE, NY 10583

Westchester County (914) 722-6300

CARDIOLOGY CONSULTANTS OF WESTCHESTER, PC

Internal Medicine (Cardiovascular Disease)

688 WHITE PLAINS RD, SUITE 210
SCARSDALE, NY 10583

Westchester County (914) 723-3322

DR. BASIL A KOCUR M.D.

Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)

688 WHITE PLAINS RD, SUITE 221
SCARSDALE, NY 10583

Westchester County (914) 722-2600

UROGYNECOLOGY OF NY PC

Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)

688 WHITE PLAINS RD, SUITE 221
SCARSDALE, NY 10583

Westchester County (914) 722-2600

GASTROINTESTINAL AND LIVER CARE GROUP PLLC

Internal Medicine (Gastroenterology)

688 WHITE PLAINS RD, SUITE 222
SCARSDALE, NY 10583

Westchester County (914) 725-9115

SCOTT I AFRAN MD PC

Ophthalmology

688 WHITE PLAINS RD
SCARSDALE, NY 10583

Westchester County (914) 725-1303

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 Peter Slotwiner-nie's NPI number?

The NPI number for Peter Slotwiner-nie is 1508812405. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Where is Peter Slotwiner-nie located?

Peter Slotwiner-nie practices at 688 White Plains Rd Suite 222, Scarsdale, NY 10583. The listed phone number is (914) 725-9115.

What is Peter Slotwiner-nie's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Peter Slotwiner-nie enrolled in Medicare?

Yes. Peter Slotwiner-nie is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Peter Slotwiner-nie's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Slotwiner-nie reassigns Medicare benefits to Montefiore Medical Center (Bronx, NY). 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 Peter Slotwiner-nie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Peter Slotwiner-nie affiliated with any hospitals?

According to CMS data, Peter Slotwiner-nie is affiliated with Montefiore Medical Center and White Plains Hospital Center.

When was this NPI record last updated?

The NPPES record for Peter Slotwiner-nie was last updated on March 3, 2008. 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.