Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MICHAEL GUENTHER KAISER M.D.
NPI 1598818817
Neurological Surgery in Ridgewood, NJ

Q: What is Michael Kaiser's NPI number?

The NPI number for Michael Kaiser is 1598818817. It was assigned to this individual provider in the NPPES registry on January 19, 2007.

Q: What is Michael Kaiser's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Q: When was this NPI record last updated?

The NPPES record for Michael Kaiser was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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 January 19, 2007PECOS Enrolled

1200 E RIDGEWOOD AVE STE 200, RIDGEWOOD, NJ 07450(201) 327-8600(201) 327-8225 Get Directions Write a Review

NPPES record last updated: October 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Michael Guenther Kaiser M.d. NPPES

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

DR. MICHAEL GUENTHER KAISER M.D. (NPI 1598818817) is an individual neurological surgery provider in Ridgewood, New Jersey, licensed in New Jersey (25MA07761500) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Valley Hospital, and maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1598818817

Entity TypeIndividualMale

Primary Taxonomy207T00000X

Provider Legal NameDR. MICHAEL GUENTHER KAISERCredential: M.D.

Location Address1200 E RIDGEWOOD AVE STE 200Ridgewood, NJ 07450-3937

Mailing Address1200 E Ridgewood Ave Ste 200Ridgewood, NJ 07450-3937 · (201) 327-8600 · Fax (201) 327-8225

Phone(201) 327-8600

Fax(201) 327-8225

Sole ProprietorNo

Medical School CMSYale University School Of MedicineGraduated 1994

Enumeration DateJanuary 19, 2007

Last NPPES UpdateOctober 21, 2026

NPPES CertifiedOctober 21, 2026

✔ NPI 1598818817 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207T00000X

Licenses✔ Licensed in NJ · 25MA07761500✔ Licensed in NY · 220494

Definition

A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.

1200 E RIDGEWOOD AVE STE 200, Ridgewood, NJ 07450

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Secondary Practice Location 1

Location 1710 W 168th St, Room 504New York, NY 10032-3726 · Phone (212) 305-0378 · Fax (212) 305-4108

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. Michael Guenther Kaiser 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 ID6002916293

PECOS Enrollment IDI20070718000047

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

Neurosurgical Associates Of New Jersey, P.C.

Same address

Neurological Surgery

1200 E RIDGEWOOD AVE STE 200
Ridgewood, NJ 07450

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

NPI 1992753594 (201) 327-8600

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 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.

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.

88 services88 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.

72 services58 patients

Fusion of additional segment of spine 22614

Fusion of an additional segment of the spine is a surgical procedure to join two or more vertebrae together. This is done to stabilize the spine and reduce pain or correct a deformity. The procedure involves using bone grafts, rods, or screws to secure the spine.

44 services12 patients

Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment 63048

This procedure involves the partial removal of a bone in your spine to alleviate pressure on your spinal cord or nerves. It may be performed on multiple spine segments depending on your condition. The aim is to improve mobility and reduce pain or discomfort.

27 services11 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

27 services25 patients

Insertion of cage or mesh device to spine bone and disc space during spine fusion 22853

Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.

15 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Valley Hospital

Acute Care Hospitals · Paramus, NJ

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310012

Location4 Valley Health PlazaParamus, NJ 07652 · Bergen County

Emergency services Birthing friendly

Chilton Medical Center

Acute Care Hospitals · Pompton Plains, NJ

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number310017

Location97 West ParkwayPompton Plains, NJ 07444 · Morris County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07450 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

$79.09 typical visit price

range $20.97 – $155.92

Typical copayment $19.77 (range $5.24 – $38.98)

Most-billed visit code 99213

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 11

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

ALFRED OGDEN MD

Neurological Surgery