John Derrick Harness, DPM
- Medicare patients, 2024
- 353
- Part D claims, 2024
- 1,224
- Hospital affiliations
- 3
- Industry payments
- $571
- State license
- 1
- Practice address
- 1035 Bellevue Ave, Saint Louis, MO 63117
- Practice phone
- Call (314) 644-5152
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Metro St Louis Surgery Center
Saint Louis, Missouri
Find John Harness' 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.
John Derrick Harness is a podiatrist in Saint Louis, Missouri
John Harness practices at Metro St Louis Surgery Center in Saint Louis, Missouri.
John Harness' NPI, 1649272493, was assigned on August 11, 2005. John Harness graduated from Kent State University College of Podiatric Medicine in 2003. John Harness holds Missouri license 2004024287.
- NPI
- 1649272493NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547296089
- NPI enumeration date
- August 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 644-5152
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John Derrick Harness practices at Metro St Louis Surgery Center in Saint Louis, Missouri
John Harness' primary practice is Metro St Louis Surgery Center, at 1035 Bellevue Ave, Saint Louis, MO 63117 in Saint Louis County. The practice phone is (314) 644-5152.
- Metro St Louis Surgery Center1035 Bellevue Ave, Saint Louis, MO 63117 · Saint Louis CountyPhone(314) 644-5152
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John Derrick Harness is affiliated with 5 sites of care
John Harness' primary practice is Metro St Louis Surgery Center in Saint Louis, Missouri. John Harness is also affiliated with Mercy Hospital St. Louis. Dmand AI also links John Harness to 2 more hospitals and 1 physician office, 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 John Derrick Harness' practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Harness practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Metro St Louis Surgery Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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John Derrick Harness is one of 91 podiatrists in Missouri
Podiatrist is John Harness' primary specialty in the NPI Registry, under taxonomy code 213E00000X. John Harness is licensed in Missouri.
Specialties and state licenses
- Podiatrist, MissouriPrimary
Podiatrists near John Harness
Counts of podiatrists 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
John Derrick Harness treated 353 Medicare patients in 2024, average age 76
CMS counts 353 Medicare patients who saw John Harness in 2024. The largest group is 85 and over, with 105 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 2.71, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts John Harness' median patient age at 71, with 57% women.
John Harness' Medicare patients by age, 2024
John Harness' Medicare patients by sex, 2024
- Women19756%
- Men15644%
Chronic conditions among John Harness' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes56%
- Arthritis54%
- Chronic kidney disease49%
- Heart failure39%
- Mood disorders37%
- Depression33%
Share of Medicare patients with each condition. A patient can have several.
John Harness' 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
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
John Derrick Harness wrote 1,224 Medicare Part D claims in 2024
In 2024, John Harness wrote 1,224 Medicare Part D claims for 426 patients. 95% of them were for generic drugs.
John Harness' Part D claims by kind of drug, 2024
- Generic1,163 claims95%
- Brand-name61 claims5%
Drug classes CMS tracks in John Harness' Part D claims, 2024
- Opioids4%48 of 1,224 claims
- Antibiotics18%221 of 1,224 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
John Derrick Harness scored 0 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 0 out of 100 for John Harness for performance year 2024, reported individually. John Harness accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 257 procedures of removal or shaving of skin growth by John Harness, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
John Harness' MIPS scores, performance year 2024
- 0of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 0of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where John Harness ranks in Medicare procedure volume
- Removal of nail tissue
- 80th percentile377 procedures
- Removal or shaving of skin growth
- 92nd percentile257 procedures
- Removal of tissue
- 67th percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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John Derrick Harness received $571 in industry payments in 2025
CMS Open Payments shows 29 general payments to John Harness from 7 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Kerecis Limited paid the most, $329.
Companies that paid John Harness the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John Derrick Harness graduated from Kent State University College of Podiatric Medicine
John Harness graduated from Kent State University College of Podiatric Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John Derrick Harness'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 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)Doctors and Clinicians Utilization Data (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 John Derrick Harness
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What is John Derrick Harness' NPI number?
John Derrick Harness' NPI number is 1649272493. It was assigned on August 11, 2005, and it is active in the NPI Registry.
What does John Derrick Harness specialize in?
John Derrick Harness is a podiatrist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Podiatrist (taxonomy code 213E00000X).
Where does John Derrick Harness practice?
John Harness practices at 1035 Bellevue Ave, Saint Louis, MO 63117. John Harness' primary practice is Metro St Louis Surgery Center in Saint Louis, Missouri. Dmand AI also links John Harness to 2 hospitals and 1 physician office.
What is John Derrick Harness' office phone number?
The practice phone on file for John Harness is (314) 644-5152.
What is John Derrick Harness' medical license number?
John Harness holds Missouri license 2004024287.
Which hospitals is John Derrick Harness affiliated with?
John Harness is affiliated with Mercy Hospital St. Louis. Dmand AI links John Harness to 2 more hospitals.
Does John Derrick Harness accept Medicare?
Yes. CMS lists John Harness as accepting Medicare assignment.
What is John Derrick Harness' MIPS score?
John Harness' MIPS final score for performance year 2024 is 0 out of 100, reported individually.
How many Medicare patients does John Derrick Harness see?
CMS counts 353 Medicare patients who saw John Harness in 2024, with an average age of 76.
Where did John Derrick Harness go to medical school?
John Harness graduated from Kent State University College of Podiatric Medicine in 2003.
Has John Derrick Harness received payments from drug or device companies?
CMS Open Payments shows $571 in general payments to John Harness from 7 companies from 2025 to 2025. The largest total came from Kerecis Limited.
How long has John Derrick Harness been practicing?
John Harness graduated from medical school in 2003, 23 years ago.
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