Dr. Mark I. Zimmerman, MD
- Medicare services, 2024
- 1,860
- Medicare patients, 2024
- 514
- Part D claims, 2024
- 539
- Hospital affiliations
- 1
- Industry payments
- $7,392
- Practice address
- 360 Essex St, Hackensack, NJ 07601
- Practice phone
- Call (732) 807-0800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hmhmg Specialty Care
Hackensack, New Jersey
Find Dr. Zimmerman's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark I. Zimmerman is a pulmonologist in Hackensack, New Jersey
Dr. Zimmerman practices at Hmhmg Specialty Care in Hackensack, New Jersey.
Dr. Zimmerman's NPI, 1447251509, was assigned on August 10, 2005. Dr. Zimmerman graduated from New York University Grossman School of Medicine in 1985. Dr. Zimmerman holds New Jersey license 25MA05755500.
- NPI
- 1447251509NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375679822
- NPI enumeration date
- August 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (732) 807-0800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark I. Zimmerman practices at Hmhmg Specialty Care in Hackensack, New Jersey
Dr. Zimmerman's primary practice is Hmhmg Specialty Care, at 360 Essex St, Hackensack, NJ 07601 in Bergen County. The practice phone is (732) 807-0800.
- Hmhmg Specialty Care360 Essex St, Hackensack, NJ 07601 · Bergen CountyPhone(732) 807-0800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark I. Zimmerman is affiliated with 4 sites of care and 2 medical groups
Dr. Zimmerman's primary practice is Hmhmg Specialty Care in Hackensack, New Jersey. Dr. Zimmerman is also affiliated with JFK University Medical Center. The medical group on file is Hackensack Meridian Medical Group. Dmand AI also links Dr. Zimmerman to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark I. Zimmerman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmerman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hmhmg Specialty Care | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark I. Zimmerman is one of 442 pulmonologists in New Jersey
Pulmonary disease is Dr. Zimmerman's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Zimmerman is licensed in New Jersey.
Specialties and state licenses
- Pulmonary disease, New JerseyPrimary
Pulmonologists near Dr. Zimmerman
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark I. Zimmerman billed Medicare for 1,860 services in 2024
CMS data shows 1,860 Medicare services from Dr. Zimmerman across 9 procedure codes in 2024, for 514 Medicare patients. Medicare paid $194,828 for them.
Dr. Zimmerman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,0872024: 1,83512%
- Tests and treatments
- 2023: 2302024: 2589%
Where Dr. Zimmerman's Medicare services took place, 2024
- In an office24613%
- In a facility1,61487%
Dr. Zimmerman compared with the New Jersey median for pulmonologists, 2024
- Dr. Zimmerman
- New Jersey median
- Medicare services
- 1,860vs 1,17359% above
- Medicare patients
- 514vs 42322% above
- Part D claims
- 461vs 87948% below
Medians across 447 pulmonologists in New Jersey with Dmand AI profiles that report each measure.
Dr. Zimmerman's most billed Medicare procedure codes, 2024
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zimmerman and other pulmonologists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark I. Zimmerman treated 514 Medicare patients in 2024, average age 77
CMS counts 514 Medicare patients who saw Dr. Zimmerman in 2024. The largest group is 75 to 84, with 181 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Zimmerman's median patient age at 70, with 48% women.
Dr. Zimmerman's Medicare patients by age, 2024
Dr. Zimmerman's Medicare patients by sex, 2024
- Women26652%
- Men24848%
Chronic conditions among Dr. Zimmerman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- COPD63%
- Heart failure62%
- Diabetes60%
- Arthritis57%
- Chronic kidney disease50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zimmerman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women48%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark I. Zimmerman wrote 539 Medicare Part D claims in 2024
In 2024, Dr. Zimmerman wrote 539 Medicare Part D claims for 123 patients. 34% of them were for generic drugs. CMS names the drug for 461 of them, across 10 drugs with 11 or more claims each, at $171,478 in total drug cost. In 2023, CMS named 365 claims across 9 drugs.
Dr. Zimmerman's Part D claims by kind of drug, 2024
- Generic181 claims34%
- Brand-name358 claims66%
Dr. Zimmerman'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: 3652024: 46126%
Drugs named by CMS: 10 in 2024, 9 in 2023.
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
How Dr. Mark I. Zimmerman takes part in Medicare
Dr. Zimmerman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark I. Zimmerman received $7,392 in industry payments from 2016 to 2025
CMS Open Payments shows 508 general payments to Dr. Zimmerman from 38 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $2,857.
General payments to Dr. Zimmerman by program year, 2016 to 2025
General payments to Dr. Zimmerman by kind, 2016 to 2025
- Food and beverage$7,367100%
- Education$250%
Companies that paid Dr. Zimmerman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark I. Zimmerman graduated from New York University Grossman School of Medicine
Dr. Zimmerman graduated from New York University Grossman School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark I. Zimmerman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark I. Zimmerman
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. Mark I. Zimmerman's NPI number?
Dr. Mark I. Zimmerman's NPI number is 1447251509. It was assigned on August 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark I. Zimmerman?
Dr. Mark I. Zimmerman is a pulmonologist in Hackensack, New Jersey. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Mark I. Zimmerman practice?
Dr. Zimmerman practices at 360 Essex St, Hackensack, NJ 07601. Dr. Zimmerman's primary practice is Hmhmg Specialty Care in Hackensack, New Jersey. Dmand AI also links Dr. Zimmerman to 2 group practices and clinics and 1 medical group.
What is Dr. Mark I. Zimmerman's office phone number?
The practice phone on file for Dr. Zimmerman is (732) 807-0800.
What is Dr. Mark I. Zimmerman's medical license number?
Dr. Zimmerman holds New Jersey license 25MA05755500.
Which hospitals is Dr. Mark I. Zimmerman affiliated with?
Dr. Zimmerman is affiliated with JFK University Medical Center.
What medical group is Dr. Mark I. Zimmerman part of?
Dr. Zimmerman is linked to Hackensack Meridian Medical Group. Dmand AI links Dr. Zimmerman to 1 more medical group.
Does Dr. Mark I. Zimmerman accept Medicare?
Yes. CMS data shows Dr. Zimmerman billed Medicare for 1,860 services in 2024, and Dr. Zimmerman accepts Medicare assignment.
How many Medicare patients does Dr. Mark I. Zimmerman see?
CMS counts 514 Medicare patients who saw Dr. Zimmerman in 2024, with an average age of 77.
What services does Dr. Mark I. Zimmerman bill to Medicare?
In 2024, Dr. Zimmerman's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and critical care (99291).
Show 4 more questionsShow fewer questions
Where did Dr. Mark I. Zimmerman go to medical school?
Dr. Zimmerman graduated from New York University Grossman School of Medicine in 1985.
What drugs does Dr. Mark I. Zimmerman prescribe most?
In 2024 Medicare Part D data, Dr. Zimmerman's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Breo Ellipta.
Has Dr. Mark I. Zimmerman received payments from drug or device companies?
CMS Open Payments shows $7,392 in general payments to Dr. Zimmerman from 38 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Mark I. Zimmerman been practicing?
Dr. Zimmerman graduated from medical school in 1985, 41 years ago.
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