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MICHAEL KLEYN M.D.
NPI 1275761207
Internal Medicine - Critical Care Medicine in Mountainside, NJ

Active since June 29, 2009PECOS EnrolledAccepts Medicare Assignment
6 HIGHPOINT DR, MOUNTAINSIDE, NJ 07092(718) 207-3140 Get Directions Write a Review

NPPES record last updated: December 8, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Michael Kleyn M.d. NPPES

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

MICHAEL KLEYN M.D. (NPI 1275761207) is an individual critical care medicine provider in Mountainside, New Jersey, licensed in New Jersey (25MA09504100) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Trinitas Regional Medical Center, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1275761207
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameMICHAEL KLEYNCredential: M.D.
Location Address6 HIGHPOINT DRMountainside, NJ 07092-1502
Mailing Address6 Highpoint DrMountainside, NJ 07092-1502 · (718) 207-3140
Phone(718) 207-3140
Sole ProprietorYes
Medical School CMSOtherGraduated 2008
Enumeration DateJune 29, 2009
Last NPPES UpdateDecember 8, 2015
✔ NPI 1275761207 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
Licenses✔ Licensed in NJ · 25MA09504100✔ Licensed in FL · ME 122780
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
6 HIGHPOINT DR, Mountainside, NJ 07092
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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

Michael Kleyn 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 ID2062633159
PECOS Enrollment IDI20141014000849
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 Reassignments

6

Medicare enrollment records show Michael Kleyn reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rwjbh Observation Associates LLC
5.6 mi
Emergency Medicine
94 OLD SHORT HILLS RD
Livingston, NJ 07039
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,913 clinicians in this Medicare group
NPI 1760095806 (888) 724-7123
Hospitalist Physicians Of New Jersey PA
9.5 mi
Hospitalist
65 JAMES ST
Edison, NJ 08820
  • Reassigned Medicare billing, New Jersey enrollment
  • 351 clinicians in this Medicare group
NPI 1588021851 (732) 321-7000
Garden State Healthcare Associates, LLC
13 mi
Emergency Medicine
29 E 29TH ST
Bayonne, NJ 07002
  • Reassigned Medicare billing, New Jersey enrollment
  • 637 clinicians in this Medicare group
NPI 1700014545 (844) 242-7436
Rwjbh Emergency Medicine Associates, LLC
14 mi
Emergency Medicine
3 EXECUTIVE DR, STE 400
Somerset, NJ 08873
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,557 clinicians in this Medicare group
NPI 1912510041 (732) 867-9618
Riverfront Intensivists
20 mi
Critical Care Medicine
7600 RIVER RD
North Bergen, NJ 07047
  • Reassigned Medicare billing, New Jersey enrollment
  • 17 clinicians in this Medicare group
NPI 1639618424 (201) 854-5000
Critical Care Physicians Of New Jersey PC
76 mi
Critical Care Medicine
454 HURFFVILLE CROSS KEYS RD
Turnersville, NJ 08012
  • Reassigned Medicare billing, New Jersey enrollment
  • 32 clinicians in this Medicare group
NPI 1154682680 (615) 377-5600

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

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.

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.
193 services100 patients

Hospital Affiliations CMS Care Compare

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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07092 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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%25 patients5/55-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.

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 Michael Kleyn's NPI number?

The NPI number for Michael Kleyn is 1275761207. It was assigned to this individual provider in the NPPES registry on June 29, 2009.

Where is Michael Kleyn located?

Michael Kleyn practices at 6 Highpoint Dr, Mountainside, NJ 07092. The listed phone number is (718) 207-3140.

What is Michael Kleyn's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Michael Kleyn enrolled in Medicare?

Yes. Michael Kleyn 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 organizations bill Medicare for Michael Kleyn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Kleyn reassigns Medicare benefits to 6 organizations: Rwjbh Observation Associates LLC (Livingston, NJ), Hospitalist Physicians Of New Jersey PA (Edison, NJ), Garden State Healthcare Associates, LLC (Bayonne, NJ), Rwjbh Emergency Medicine Associates, LLC (Somerset, NJ), Riverfront Intensivists (North Bergen, NJ) and 1 more organization, listed in the Medicare section above. Each 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 Michael Kleyn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Kleyn accept?

Health plans from Oscar Health list Michael Kleyn 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 Michael Kleyn affiliated with any hospitals?

According to CMS data, Michael Kleyn is affiliated with Trinitas Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Michael Kleyn was last updated on December 8, 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.