Johnny Lee Isenberger

  • Mendon, MA
  • Nurse practitioner
NPI1497987028PAC ID0749329621
Medicare patients, 2024
30
MIPS score, 2024
100
Hospital affiliations
2
Medical groups
2
State license
1
Practice address
55 Lake Avenue North, Worcester, MA 01655
Practice phone
Call (508) 334-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UMass Memorial Medical Center - University Campus

Hospital · Worcester, Massachusetts

See all 4 affiliations

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Johnny Lee Isenberger is a nurse practitioner in Mendon, Massachusetts

Johnny Isenberger practices at UMass Memorial Medical Center - University Campus in Worcester, Massachusetts, part of UMass Memorial Health Care.

Johnny Isenberger's NPI, 1497987028, was assigned on August 15, 2009. Johnny Isenberger holds Massachusetts license 250929.

NPI and contact details
Medicare PAC ID
0749329621
NPI enumeration date
August 15, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(508) 334-1000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Johnny Lee Isenberger practices in Worcester and Mendon

Johnny Isenberger's primary practice is UMass Memorial Medical Center - University Campus, at 55 Lake Avenue North, Worcester, MA 01655 in Worcester County. The practice phone is (508) 334-1000. The NPI Registry lists Johnny Isenberger's practice address as 55 North Ave, Mendon, MA 01756.

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data

Johnny Lee Isenberger is affiliated with 2 sites of care and 2 medical groups

Johnny Isenberger's primary practice is UMass Memorial Medical Center - University Campus in Worcester, Massachusetts, part of UMass Memorial Health Care. Johnny Isenberger is also affiliated with UMass Memorial Health - HealthAlliance-Clinton Hospital. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Johnny Isenberger to 1 more medical group, named with a free account.

See all 4 affiliations for Johnny Isenberger

Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Johnny Lee Isenberger's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Johnny Isenberger practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UMass Memorial Medical Center - University CampusAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Johnny Lee Isenberger is one of 2,511 nurse practitioners in Massachusetts

Nurse practitioner is Johnny Isenberger's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Johnny Isenberger is licensed in Massachusetts.

Specialties and state licenses

  • Nurse practitioner, MassachusettsPrimaryLicense 250929 · taxonomy 363L00000X

Nurse practitioners near Johnny Isenberger

Counts of nurse practitioners 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

Johnny Lee Isenberger treated 30 Medicare patients in 2024, average age 72

CMS counts 30 Medicare patients who saw Johnny Isenberger in 2024. 75% of them have high blood pressure, and 67% have high cholesterol. 43% are also on Medicaid. Their average risk score is 2.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Johnny Isenberger's median patient age at 71, with 75% women.

Medicare patients, 202430
Average age72
Average risk score2.80
Also on Medicaid43%

Johnny Isenberger's Medicare patients by sex, 2024

  • Women1447%
  • Men1653%

Chronic conditions among Johnny Isenberger's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol67%
  3. Arthritis47%
  4. COPD47%
  5. Anxiety43%
  6. Atrial fibrillation43%
  7. Chronic kidney disease40%
  8. Diabetes40%

Share of Medicare patients with each condition. A patient can have several.

Johnny Isenberger's patients across all payers

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

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women75%
  • Men25%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Johnny Lee Isenberger scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Johnny Isenberger for performance year 2024, reported through an alternative payment model (APM). Johnny Isenberger accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Johnny Isenberger's MIPS scores, performance year 2024

  • 100of 100Final score
  • 83of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

Sources for Johnny Lee Isenberger'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
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 Johnny Lee Isenberger

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

What is Johnny Lee Isenberger's NPI number?

Johnny Lee Isenberger's NPI number is 1497987028. It was assigned on August 15, 2009, and it is active in the NPI Registry.

What does Johnny Lee Isenberger specialize in?

Johnny Lee Isenberger is a nurse practitioner in Mendon, Massachusetts. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).

Where does Johnny Lee Isenberger practice?

Johnny Isenberger practices at 55 Lake Avenue North, Worcester, MA 01655. Johnny Isenberger also practices at 55 North Ave, Mendon, MA 01756. Johnny Isenberger's primary practice is UMass Memorial Medical Center - University Campus in Worcester, Massachusetts, part of UMass Memorial Health Care. Dmand AI also links Johnny Isenberger to 1 medical group.

What is Johnny Lee Isenberger's office phone number?

The practice phone on file for Johnny Isenberger is (508) 334-1000.

What is Johnny Lee Isenberger's medical license number?

Johnny Isenberger holds Massachusetts license 250929.

Which hospitals is Johnny Lee Isenberger affiliated with?

Johnny Isenberger practices at UMass Memorial Medical Center - University Campus in Worcester, Massachusetts. Johnny Isenberger is also affiliated with UMass Memorial Health - HealthAlliance-Clinton Hospital.

What medical group is Johnny Lee Isenberger part of?

Johnny Isenberger is linked to UMass Memorial Medical Group. Dmand AI links Johnny Isenberger to 1 more medical group.

Does Johnny Lee Isenberger accept Medicare?

Yes. CMS lists Johnny Isenberger as accepting Medicare assignment.

What is Johnny Lee Isenberger's MIPS score?

Johnny Isenberger's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Johnny Lee Isenberger see?

CMS counts 30 Medicare patients who saw Johnny Isenberger in 2024, with an average age of 72.

How long has Johnny Lee Isenberger been practicing?

Johnny Isenberger graduated from medical school in 2009, 17 years ago.

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