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

MARLENA KLEIN DO
NPI 1457871063
Internal Medicine in Haddonfield, NJ

Active since June 24, 2017PECOS EnrolledAccepts Medicare Assignment
99.3/100
CMS Quality Rating
100 GROVE ST, HADDONFIELD, NJ 08033(856) 325-6601 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 7, 2026, Aug 12, 2020, Jun 24, 2017 (3 updates tracked since 2017).

About Marlena Klein Do NPPES

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

MARLENA KLEIN DO (NPI 1457871063) is an individual internal medicine provider in Haddonfield, New Jersey, licensed in New Jersey (25MB10791900) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS, is affiliated with Cooper University Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1457871063
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARLENA KLEINCredential: DO
Location Address100 GROVE STHaddonfield, NJ 08033-1211
Mailing Address1 Federal St # 200Camden, NJ 08103-1088 · (856) 356-4924
Phone(856) 325-6601
Sole ProprietorYes
Medical School CMSOtherGraduated 2017
Enumeration DateJune 24, 2017
Last NPPES UpdateOctober 7, 20263 updates tracked since enumeration
NPPES CertifiedOctober 7, 2026
✔ NPI 1457871063 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NJ · 25MB10791900
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.
100 GROVE ST, Haddonfield, NJ 08033
Open in Google Maps ↗

Secondary Practice Locations 3

Location 16100 Main StVoorhees, NJ 08043-4643 · Phone (856) 673-4912
Location 22339 Route 70 WCherry Hill, NJ 08002-3315 · Phone (856) 532-9519
Location 31 Cooper PlzCamden, NJ 08103-1461 · Phone (856) 856-3422

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

Marlena Klein Do 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 ID2264856087
PECOS Enrollment IDI20200727000057
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

2

Medicare enrollment records show Marlena Klein reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cooper Family Medicine, PC
2.0 mi
Family Medicine
1050 KINGS HWY N, SUITE 105
Cherry Hill, NJ 08034
  • Reassigned Medicare billing, New Jersey enrollment
  • 157 clinicians in this Medicare group
NPI 1649217175 (856) 321-0303
Cooper Physician Offices, PA
5.2 mi
Internal Medicine
3 COOPER PLZ, SUITE 215
Camden, NJ 08103
  • Reassigned Medicare billing, New Jersey enrollment
  • 535 clinicians in this Medicare group
NPI 1154369510 (856) 342-2439

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.

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
150 services150 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.
144 services103 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.
102 services77 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
33 services33 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
31 services31 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
22 services18 patients

Hospital Affiliations CMS Care Compare 3

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

Cooper University Hospital

Acute Care Hospitals · Camden, NJ
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310014
Location1 Cooper PlazaCamden, NJ 08103 · Camden County
Emergency services Birthing friendly

West Jersey Hospital

Acute Care Hospitals · Voorhees, NJ
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310022
Location100 Bowman DriveVoorhees, NJ 08043 · Camden County
Emergency services Birthing friendly

Penn Presbyterian Medical Center

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390223
Location51 North 39th StreetPhiladelphia, PA 19104 · Philadelphia County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08033 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
$140.34 typical visit price
range $61.59 – $185.05
Typical copayment $35.08 (range $15.39 – $46.26)
Most-billed visit code 99204
Established Patient
$107.94 typical visit price
range $20.08 – $150.98
Typical copayment $26.98 (range $5.02 – $37.74)
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.

99.3/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.96
Promoting Interoperability99.45
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 2

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
5 suppliers12 claims27 services$6.12 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
4 suppliers30 claims30 services$200.58 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

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

ASHLEY MATHEW PA-C
Physician Assistant
100 GROVE ST
HADDONFIELD, NJ 08033
Camden County (856) 325-6601

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 Marlena Klein's NPI number?

The NPI number for Marlena Klein is 1457871063. It was assigned to this individual provider in the NPPES registry on June 24, 2017.

Where is Marlena Klein located?

Marlena Klein practices at 100 Grove St, Haddonfield, NJ 08033. The listed phone number is (856) 325-6601.

What is Marlena Klein's specialty?

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

Is Marlena Klein enrolled in Medicare?

Yes. Marlena Klein 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 Marlena Klein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marlena Klein reassigns Medicare benefits to 2 organizations: Cooper Family Medicine, PC (Cherry Hill, NJ) and Cooper Physician Offices, PA (Camden, NJ). 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 Marlena Klein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marlena Klein accept?

Health plans from Oscar Health list Marlena Klein 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 Marlena Klein affiliated with any hospitals?

According to CMS data, Marlena Klein is affiliated with Cooper University Hospital, West Jersey Hospital and Penn Presbyterian Medical Center.

When was this NPI record last updated?

The NPPES record for Marlena Klein was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 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.