WILLIAM PAUL GRIST MD
NPI 1407385271
Internal Medicine in Jersey City, NJ

Q: What is William Grist's NPI number?

The NPI number for William Grist is 1407385271. It was assigned to this individual provider in the NPPES registry on June 6, 2017.

Q: What is William Grist'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 William Grist was last updated on November 1, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 June 06, 2017PECOS EnrolledAccepts Medicare Assignment

355 GRAND ST, JERSEY CITY, NJ 07302(201) 915-2431 Get Directions Write a Review

NPPES record last updated: November 1, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 1, 2022, Jul 21, 2022, Jun 6, 2017 (3 updates tracked since 2017).

On this page

About William Paul Grist Md NPPES

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

WILLIAM PAUL GRIST MD (NPI 1407385271) is an individual internal medicine provider in Jersey City, New Jersey, licensed in New Jersey (25MA11024000) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1407385271

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameWILLIAM PAUL GRISTCredential: MD

Location Address355 GRAND STJersey City, NJ 07302-4321

Mailing Address355 Grand StJersey City, NJ 07302-4321 · (201) 915-2431

Phone(201) 915-2431

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateJune 6, 2017

Last NPPES UpdateNovember 1, 20223 updates tracked since enumeration

NPPES CertifiedNovember 1, 2022

✔ NPI 1407385271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in NJ · 25MA11024000

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 ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 25MA11024000 (NJ)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

355 GRAND ST, Jersey City, NJ 07302

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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

William Paul Grist 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 ID941678056

PECOS Enrollment IDI20221122000042

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 William Grist reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mm Jc Breathing Center Family Ltd Partnership

1.4 mi

Internal Medicine

192 HARRISON AVENUE
Jersey City, NJ 07304

Reassigned Medicare billing, New Jersey enrollment
14 clinicians in this Medicare group

NPI 1235365354 (201) 333-5363

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 2

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 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.

32 services31 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.

19 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07302 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.

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.

JERSEY CITY CRITICAL CARE ASSOCIATES

Specialist

355 GRAND ST, JERSEY CITY MEDICAL CENTER
JERSEY CITY, NJ 07302

Hudson County (908) 806-8224

SHERIDAN ANESTHESIA SERVICES OF NEW JERSEY PC

Anesthesiology

355 GRAND ST
JERSEY CITY, NJ 07302

Hudson County (201) 915-2000

SAIRA SHAH MD

Internal Medicine

355 GRAND ST, MEDICINE DEPT,3RD FLOOR
JERSEY CITY, NJ 07302

Hudson County (201) 915-2000

SUSAN E. O'BRIEN DO

Emergency Medicine

355 GRAND ST, JERSEY CITY MEDICAL CENTER
JERSEY CITY, NJ 07302

Hudson County (201) 915-2000

DR. JARED SAUL KROK M.D.

Internal Medicine

355 GRAND ST
JERSEY CITY, NJ 07302

Hudson County (201) 915-2431

ANIELLO SEMIOLI LSW

Social Worker

355 GRAND ST
JERSEY CITY, NJ 07302

Hudson County (201) 492-1296

SUMEETA BHOGAL MD

Student in an Organized Health Care Education/Training Program

355 GRAND ST
JERSEY CITY, NJ 07302

Hudson County (201) 915-2000

LIBERTY EMERGENCY MEDICAL ASSOCIATES LLC

Emergency Medicine

355 GRAND ST, JERSEY CITY MEDICAL CENTER ( EMERGENCY DEPARTMENT)
JERSEY CITY, NJ 07302

Hudson County (469) 401-2386

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 William Grist's NPI number?

The NPI number for William Grist is 1407385271. It was assigned to this individual provider in the NPPES registry on June 6, 2017.

Where is William Grist located?

William Grist practices at 355 Grand St, Jersey City, NJ 07302. The listed phone number is (201) 915-2431.

What is William Grist's specialty?

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

Is William Grist enrolled in Medicare?

Yes. William Grist 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 William Grist's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Grist reassigns Medicare benefits to Mm Jc Breathing Center Family Ltd Partnership (Jersey City, 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 William Grist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Grist accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list William Grist 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.

When was this NPI record last updated?

The NPPES record for William Grist was last updated on November 1, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.