Dr. William J. Chernack, MD

  • Morristown, NJ
  • Allergy physician
NPI1013941012
Medicare services, 2023
6,304
Part D claims, 2024
101
Affiliated sites
1
State license
1
Year NPI issued
2006
Practice address
28 Franklin Pl, Morristown, NJ 07960-5378
Practice phone
Call (973) 538-7271
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

William Chernack MD

Physician office · Morristown, New Jersey

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Dr. William J. Chernack is an allergy physician in Morristown, New Jersey

Dr. Chernack practices at William Chernack MD in Morristown, New Jersey.

Dr. Chernack's NPI, 1013941012, was assigned on July 10, 2006. Dr. Chernack graduated from New York Medical College in 1966. Dr. Chernack holds New Jersey license 25MA03168500.

NPI and contact details
NPI enumeration date
July 10, 2006
NPI status
Active
Practice phone
(973) 538-7271
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
86
Medical school graduation
1966

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. William J. Chernack practices at William Chernack MD in Morristown, New Jersey

Dr. Chernack's primary practice is William Chernack MD, at 28 Franklin Pl, Morristown, NJ 07960-5378. The practice phone is (973) 538-7271.

  • William Chernack MD
    28 Franklin Pl, Morristown, NJ 07960-5378Phone(973) 538-7271

Source: Dmand AI Affiliation Data

Dr. William J. Chernack is affiliated with 1 site of care

Dr. Chernack's primary practice is William Chernack MD in Morristown, New Jersey.

William Chernack MDPhysician office · Morristown, New JerseyPrimary

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. William J. Chernack's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chernack practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
William Chernack MDAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William J. Chernack is one of 38 allergy physicians in New Jersey

Allergy is Dr. Chernack's primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Chernack is licensed in New Jersey.

Specialties and state licenses

  • Allergy, New JerseyPrimaryLicense 25MA03168500 · taxonomy 207KA0200X

Allergy physicians near Dr. Chernack

Counts of allergy physicians with a Dmand AI profile, by place and practice. Each opens the list.

38allergy physicians in New Jersey
3allergy physicians in Morristown

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. William J. Chernack billed Medicare for 6,304 services in 2023

CMS data shows 6,304 Medicare services from Dr. Chernack across 5 procedure codes in 2023. Medicare paid $87,168 for them. Every service was in an office.

Medicare services, 20236,304
Paid by Medicare$87,168
Procedure codes5

Dr. Chernack's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Tests and treatments
2022: 4,4242023: 6,18440%
Office and hospital visits
2022: 1202023: 120No change

Dr. Chernack compared with the New Jersey median for allergy physicians, 2023

  • Dr. Chernack
  • New Jersey median
Medicare services
6,304vs 2,4502.6 times
Part D claims
26vs 30291% below

Medians across 38 allergy physicians in New Jersey with Dmand AI profiles that report each measure.

Dr. Chernack's most billed Medicare procedure codes, 2023

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William J. Chernack's patients have a median age of 24

Across all payers, Dmand AI patient panel data puts Dr. Chernack's median patient age at 24, with 60% women.

Dr. Chernack's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 24

Patient panel by sex, all payers

  • Women60%
  • Men20%

Source: Dmand AI Patient Panel Data

Dr. William J. Chernack wrote 101 Medicare Part D claims in 2024

In 2024, Dr. Chernack wrote 101 Medicare Part D claims for 30 patients. 83% of them were for generic drugs. CMS names the drug for 26 of them, across 1 drug with 11 or more claims each, at $571 in total drug cost. In 2023, CMS named 275 claims across 7 drugs.

Part D claims, 2024101
Drugs named by CMS1
Total drug cost$571
Part D patients30

Dr. Chernack's Part D claims by kind of drug, 2024

  • Generic84 claims83%
  • Brand-name17 claims17%

Dr. Chernack's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2752024: 2691%

Drugs named by CMS: 1 in 2024, 7 in 2023.

See all prescribing by Dr. Chernack

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. William J. Chernack graduated from New York Medical College

Dr. Chernack graduated from New York Medical College in 1966.

  1. Medical schoolNew York Medical College

Source: Dmand AI Professional Profile Data

Sources for Dr. William J. Chernack's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William J. Chernack

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. William J. Chernack's NPI number?

Dr. William J. Chernack's NPI number is 1013941012. It was assigned on July 10, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. William J. Chernack?

Dr. William J. Chernack is an allergy physician in Morristown, New Jersey. The primary specialty in the NPI Registry is Allergy Physician (taxonomy code 207KA0200X).

Where does Dr. William J. Chernack practice?

Dr. Chernack practices at 28 Franklin Pl, Morristown, NJ 07960-5378. Dr. Chernack's primary practice is William Chernack MD in Morristown, New Jersey.

What is Dr. William J. Chernack's office phone number?

The practice phone on file for Dr. Chernack is (973) 538-7271.

What is Dr. William J. Chernack's medical license number?

Dr. Chernack holds New Jersey license 25MA03168500.

Does Dr. William J. Chernack accept Medicare?

Yes. CMS data shows Dr. Chernack billed Medicare for 6,304 services in 2023.

What services does Dr. William J. Chernack bill to Medicare?

In 2023, Dr. Chernack's most billed Medicare services were allergy test or treatment (95165), allergy test or treatment (95117) and office visit, established patient (99213).

Where did Dr. William J. Chernack go to medical school?

Dr. Chernack graduated from New York Medical College in 1966.

What drugs does Dr. William J. Chernack prescribe most?

In 2024 Medicare Part D data, Dr. Chernack's most prescribed drugs by claims were Montelukast Sodium.

How long has Dr. William J. Chernack been practicing?

Dr. Chernack graduated from medical school in 1966, 60 years ago.

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