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Dr. John Harmon, MD
NPI1356391494
- Medicare services, 2018
- 68
- Publications
- 1
- Industry payments
- $302
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3400 Spruce St, Philadelphia, PA 19104
- Practice phone
- Call (410) 955-9441
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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. John Harmon is a general surgeon in Philadelphia, Pennsylvania
Dr. Harmon practices in Philadelphia, Pennsylvania.
Dr. Harmon's NPI, 1356391494, was assigned on May 11, 2006. Dr. Harmon holds Maryland license D51080.
NPI and contact details
- NPI
- 1356391494NPI Registry (opens in a new tab)
- NPI enumeration date
- May 11, 2006
- NPI status
- Active
- Practice phone
- (410) 955-9441
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. John Harmon's practice address is in Philadelphia, Pennsylvania
Dr. Harmon's practice address in the NPI Registry is 3400 Spruce St, Philadelphia, PA 19104, in Philadelphia County. The practice phone is (410) 955-9441.
- NPI Registry address3400 Spruce St, Philadelphia, PA 19104 · Philadelphia CountyPhone(410) 955-9441
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. John Harmon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harmon practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Harmon's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Harmon practices
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Dr. John Harmon is one of 1,398 general surgeons in Pennsylvania
Surgery is Dr. Harmon's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Harmon is licensed in Maryland.
Specialties and state licenses
- Surgery, MarylandPrimary
General surgeons near Dr. Harmon
Counts of general surgeons 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. John Harmon billed Medicare for 68 services in 2018
CMS data shows 68 Medicare services from Dr. Harmon across 3 procedure codes in 2018, all of them office visits. Medicare paid $5,526 for them.
Medicare services, 201868
Paid by Medicare$5,526
Procedure codes3
Dr. Harmon's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 592018: 6815%
Where Dr. Harmon's Medicare services took place, 2018
- In an office2435%
- In a facility4465%
Dr. Harmon compared with the Pennsylvania median for general surgeons, 2018
- Dr. Harmon
- Pennsylvania median
- Medicare services
- 68vs 15857% below
Medians across 1,213 general surgeons in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Harmon's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Harmon?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Harmon and other general surgeons in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Harmon's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Dr. Harmon's median patient age at 45, with 0% women.
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 45
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
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Dr. John Harmon has 1 publication on record
Dmand AI links 1 paper to Dr. Harmon in 2013.
Papers1
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 general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Harmon received $302 in industry payments from 2016 to 2018
CMS Open Payments shows 5 general payments to Dr. Harmon from 2 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Davol Inc. paid the most, $154.
General payments to Dr. Harmon by program year, 2016 to 2018
Companies that paid Dr. Harmon the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John 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 |
| 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 Data |
| 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. John 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. John Harmon's NPI number?
Dr. John Harmon's NPI number is 1356391494. It was assigned on May 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Harmon?
Dr. John Harmon is a general surgeon in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Harmon practice?
Dr. Harmon practices at 3400 Spruce St, Philadelphia, PA 19104.
What is Dr. John Harmon's office phone number?
The practice phone on file for Dr. Harmon is (410) 955-9441.
What is Dr. John Harmon's medical license number?
Dr. Harmon holds Maryland license D51080.
Does Dr. John Harmon accept Medicare?
Yes. CMS data shows Dr. Harmon billed Medicare for 68 services in 2018.
What services does Dr. John Harmon bill to Medicare?
In 2018, Dr. Harmon's most billed Medicare services were office visit, new patient (99203), office visit, new patient (99204) and office visit, established patient (99214).
Has Dr. John Harmon received payments from drug or device companies?
CMS Open Payments shows $302 in general payments to Dr. Harmon from 2 companies from 2016 to 2018. The largest total came from Davol Inc.
How long has Dr. John Harmon been practicing?
Dr. Harmon's NPI was assigned in 2006.
Does Dr. John Harmon do research?
Dmand AI links 1 publication to Dr. Harmon.
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