Dr. Jonathan S. Harmon, DO
- Medicare services, 2024
- 417
- Medicare patients, 2024
- 206
- Part D claims, 2024
- 88
- Publications
- 4
- MIPS score, 2024
- 80
- Practice address
- 559 W Germantown Pike, Norristown, PA 19403
- Practice phone
- Call (484) 622-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jefferson Einstein Montgomery Hospital
Norristown, Pennsylvania
Find Dr. Harmon'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. Jonathan S. Harmon is an internist in Norristown, Pennsylvania
Dr. Harmon practices at Jefferson Einstein Montgomery Hospital in Norristown, Pennsylvania.
Dr. Harmon's NPI, 1104318039, was assigned on June 6, 2018. Dr. Harmon holds New Hampshire license 25794.
- NPI
- 1104318039NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294133773
- NPI enumeration date
- June 6, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (484) 622-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jonathan S. Harmon practices at Jefferson Einstein Montgomery Hospital in Norristown, Pennsylvania
Dr. Harmon's primary practice is Jefferson Einstein Montgomery Hospital, at 559 W Germantown Pike, Norristown, PA 19403 in Montgomery County. The practice phone is (484) 622-1000.
- Jefferson Einstein Montgomery Hospital559 W Germantown Pike, Norristown, PA 19403 · Montgomery CountyPhone(484) 622-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jonathan S. Harmon is affiliated with 3 sites of care and 3 medical groups
Dr. Harmon's primary practice is Jefferson Einstein Montgomery Hospital in Norristown, Pennsylvania. Dr. Harmon is also affiliated with Dartmouth Hitchcock Medical Center. The medical group on file is Dartmouth Hitchcock Clinics Manchester. Dmand AI also links Dr. Harmon to 1 more hospital and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jonathan S. Harmon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harmon practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Einstein Montgomery Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jonathan S. Harmon is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Harmon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Harmon's licenses on file in 2 states: New Hampshire and Pennsylvania.
Specialties and state licenses
- Internal medicine, New HampshirePrimary
- Pennsylvania license
Internists near Dr. Harmon
Counts of internists 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. Jonathan S. Harmon billed Medicare for 417 services in 2024
CMS data shows 417 Medicare services from Dr. Harmon across 3 procedure codes in 2024, for 206 Medicare patients. Medicare paid $42,110 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Harmon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4902024: 41715%
Dr. Harmon compared with the Pennsylvania median for internists, 2024
- Dr. Harmon
- Pennsylvania median
- Medicare services
- 417vs 417Close to median
- Medicare patients
- 206vs 18511% above
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Harmon'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. Harmon and other internists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jonathan S. Harmon treated 206 Medicare patients in 2024, average age 75
CMS counts 206 Medicare patients who saw Dr. Harmon in 2024. The largest group is 65 to 74, with 70 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 2.53, 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. Harmon's median patient age at 65, with 52% women.
Dr. Harmon's Medicare patients by age, 2024
Dr. Harmon's Medicare patients by sex, 2024
- Women10752%
- Men9948%
Chronic conditions among Dr. Harmon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease54%
- Mood disorders50%
- Diabetes48%
- Anxiety46%
- Chronic kidney disease44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harmon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jonathan S. Harmon wrote 88 Medicare Part D claims in 2024
In 2024, Dr. Harmon wrote 88 Medicare Part D claims for 35 patients. 92% of them were for generic drugs.
Dr. Harmon's Part D claims by kind of drug, 2024
- Generic81 claims92%
- Brand-name and other7 claims8%
Drug classes CMS tracks in Dr. Harmon's Part D claims, 2024
- Antibiotics23%20 of 88 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jonathan S. Harmon scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Harmon for performance year 2024, reported through an alternative payment model (APM). Dr. Harmon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Harmon's MIPS scores, performance year 2024
- 80of 100Final score
- 53.5of 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
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Dr. Jonathan S. Harmon has 4 publications on record
Dmand AI links 4 papers to Dr. Harmon, published from 2019 to 2023. 2020 was the busiest year, with 2. Dr. Harmon has published most often in World J Oncol. Dr. Harmon's most frequent co-authors are Angelo A. Chinnici, MD, Michael J. Levitt, MD and Marjan Alidoost, MD.
Dr. Harmon's papers by year, 2019 to 2023
Dr. Harmon's most frequent co-authors
- Angelo A. Chinnici, MD4 shared papers
- Michael J. Levitt, MD2 shared papers
- Marjan Alidoost, MD1 shared paper
Recent publications by Dr. Harmon
See who Dr. Harmon researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Harmon works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jonathan S. Harmon received $226 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Dr. Harmon from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Syndax Pharmaceuticals, Inc. paid the most, $116.
General payments to Dr. Harmon by program year, 2024 to 2025
Companies that paid Dr. Harmon the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jonathan S. Harmon'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 DataDmand AI Org Hierarchy 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 (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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Jonathan S. Harmon
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. Jonathan S. Harmon's NPI number?
Dr. Jonathan S. Harmon's NPI number is 1104318039. It was assigned on June 6, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Jonathan S. Harmon?
Dr. Jonathan S. Harmon is an internist in Norristown, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jonathan S. Harmon practice?
Dr. Harmon practices at 559 W Germantown Pike, Norristown, PA 19403. Dr. Harmon's primary practice is Jefferson Einstein Montgomery Hospital in Norristown, Pennsylvania. Dmand AI also links Dr. Harmon to 1 hospital and 2 medical groups.
What is Dr. Jonathan S. Harmon's office phone number?
The practice phone on file for Dr. Harmon is (484) 622-1000.
What is Dr. Jonathan S. Harmon's medical license number?
Dr. Harmon holds New Hampshire license 25794, one of the licenses on file in 2 states.
Which states has Dr. Jonathan S. Harmon been licensed in?
Dmand AI has state licenses on file for Dr. Harmon in New Hampshire and Pennsylvania.
Which hospitals is Dr. Jonathan S. Harmon affiliated with?
Dr. Harmon is affiliated with Dartmouth Hitchcock Medical Center. Dmand AI links Dr. Harmon to 1 more hospital.
What medical group is Dr. Jonathan S. Harmon part of?
Dr. Harmon is linked to Dartmouth Hitchcock Clinics Manchester. Dmand AI links Dr. Harmon to 2 more medical groups.
Does Dr. Jonathan S. Harmon accept Medicare?
Yes. CMS data shows Dr. Harmon billed Medicare for 417 services in 2024, and Dr. Harmon accepts Medicare assignment.
What is Dr. Jonathan S. Harmon's MIPS score?
Dr. Harmon's MIPS final score for performance year 2024 is 80 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Jonathan S. Harmon see?
CMS counts 206 Medicare patients who saw Dr. Harmon in 2024, with an average age of 75.
What services does Dr. Jonathan S. Harmon bill to Medicare?
In 2024, Dr. Harmon's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99239).
Has Dr. Jonathan S. Harmon received payments from drug or device companies?
CMS Open Payments shows $226 in general payments to Dr. Harmon from 2 companies from 2024 to 2025. The largest total came from Syndax Pharmaceuticals, Inc.
How long has Dr. Jonathan S. Harmon been practicing?
Dr. Harmon graduated from medical school in 2018, 8 years ago.
Does Dr. Jonathan S. Harmon do research?
Dmand AI links 4 publications to Dr. Harmon, published from 2019 to 2023.
Who does Dr. Jonathan S. Harmon publish with?
Dr. Harmon's most frequent co-authors are Angelo A. Chinnici, MD (4 shared papers), Michael J. Levitt, MD (2 shared papers) and Marjan Alidoost, MD (1 shared paper).
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