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JOHN J OPPENHEIMER MD
NPI 1639170871
Allergy & Immunology - Allergy in Cedar Knolls, NJ

Active since August 10, 2005PECOS EnrolledAccepts Medicare Assignment
8 SADDLE RD, FIRST FLOOR, CEDAR KNOLLS, NJ 07927(908) 934-0555(973) 540-0472 Get Directions Write a Review

NPPES record last updated: May 16, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John J Oppenheimer Md NPPES

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

JOHN J OPPENHEIMER MD (NPI 1639170871) is an individual allergy provider in Cedar Knolls, New Jersey, licensed in New Jersey (25MA05056200) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and is a graduate of Temple University School Of Medicine (1986).

NPPES Registry Identity

NPI1639170871
Entity TypeIndividualMale
Primary Taxonomy207KA0200X
Provider Legal NameJOHN J OPPENHEIMERCredential: MD
Location Address8 SADDLE RD, FIRST FLOORCedar Knolls, NJ 07927-1902
Mailing AddressPo Box 416457Boston, MA 02241-6457 · (973) 656-6280 · Fax (973) 290-7495
Phone(908) 934-0555
Fax(973) 540-0472
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 1986
Enumeration DateAugust 10, 2005
Last NPPES UpdateMay 16, 2016
✔ NPI 1639170871 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207KA0200X
License✔ Licensed in NJ · 25MA05056200
Definition
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
8 SADDLE RD, Cedar Knolls, NJ 07927
Open in Google Maps ↗

Other Identifiers 10

Other121677NJ · Chn Ins.
Medicare UPINE89639NJ
Other67H422NJ · Empire Health
Other30002942NJ · Railroad Medicare
OtherIS245NJ · Oxford Ins.
Medicaid5534500NJ
Medicare PIN733360NJ
Other222233003NJ · Horizon Bc
Other222233003019NJ · Cigna Ins.
Other4263616NJ · Aetna

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John J Oppenheimer 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 ID7719978022
PECOS Enrollment IDI20100311000475
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.

Areas of Expertise CMS Part B claims 9

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.

Injection, omalizumab, 5 mg J2357
Omalizumab is a medication given via injection. It's used to treat severe allergic asthma and chronic hives when other treatments fail. The 5mg dose is determined by your doctor based on your weight and condition.
2,490 services11 patients
Injection, benralizumab, 1 mg J0517
Benralizumab is a medication given via injection to help manage severe asthma. It works by reducing the number of eosinophils, a type of white blood cell that can contribute to asthma symptoms.
1,500 services21 patients
Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
1,093 services78 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.
215 services126 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.
144 services100 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
143 services40 patients

Hospital Affiliations CMS Care Compare 2

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

Morristown Medical Center

Acute Care Hospitals · Morristown, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310015
Location100 Madison AveMorristown, NJ 07960 · Morris County
Emergency services Birthing friendly

Overlook Medical Center

Acute Care Hospitals · Summit, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310051
Location99 Beauvoir AvenueSummit, NJ 07901 · Union County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 18

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

PAIN MANAGEMENT AND ANESTHESIOLOGY OF NJ PC
Clinic/Center (Pain)
8 SADDLE RD, SUITE 204
CEDAR KNOLLS, NJ 07927
Morris County (973) 998-7868
MRS. MICHELE A DASILVA RRT
Respiratory Therapist, Registered
8 SADDLE RD
CEDAR KNOLLS, NJ 07927
Morris County (973) 455-1122
SUNRISE LIFESTYLE CENTERS LLC
Clinic/Center (Rehabilitation, Comprehensive Outpatient Rehabilitation Facility (CORF))
8 SADDLE RD, SUITE 202
CEDAR KNOLLS, NJ 07927
Morris County (973) 455-1122
SADDLE SURGERY CENTER CORP
Clinic/Center (Ambulatory Surgical)
8 SADDLE RD, SUITE 204
CEDAR KNOLLS, NJ 07927
Morris County (973) 998-7868
MIKHAIL SOLOMONOV MD
Anesthesiology
8 SADDLE RD, SUITE 204
CEDAR KNOLLS, NJ 07927
Morris County (973) 998-7868
KATHRYN WAKSMUNDZKI-SILVA M.D.
Internal Medicine (Pulmonary Disease)
8 SADDLE RD
CEDAR KNOLLS, NJ 07927
Morris County (973) 267-9393
MATTHEW HEWSTON
Internal Medicine (Sleep Medicine)
8 SADDLE RD
CEDAR KNOLLS, NJ 07927
Morris County (973) 267-9393
DR. HEEJIN MICHELLE KIM M.D.
Internal Medicine (Pulmonary Disease)
8 SADDLE RD, SUITE 101
CEDAR KNOLLS, NJ 07927
Morris County (973) 267-9393

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 John Oppenheimer's NPI number?

The NPI number for John Oppenheimer is 1639170871. It was assigned to this individual provider in the NPPES registry on August 10, 2005.

Where is John Oppenheimer located?

John Oppenheimer practices at 8 Saddle Rd First Floor, Cedar Knolls, NJ 07927. The listed phone number is (908) 934-0555.

What is John Oppenheimer's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is John Oppenheimer enrolled in Medicare?

Yes. John Oppenheimer 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.

What insurance does John Oppenheimer accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list John Oppenheimer 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 John Oppenheimer affiliated with any hospitals?

According to CMS data, John Oppenheimer is affiliated with Morristown Medical Center and Overlook Medical Center.

When was this NPI record last updated?

The NPPES record for John Oppenheimer was last updated on May 16, 2016. 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.