Dr. John Marco Watson, MD
- Part D claims, 2024
- 37
- Hospital affiliations
- 1
- Industry payments
- $318
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 1201 S Grand Blvd, Saint Louis, MO 63104
- Practice phone
- Call (314) 257-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Watson's professional email, personal email and mobile number
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Dr. John Marco Watson is a general surgeon in Saint Louis, Missouri
Dr. Watson practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care.
Dr. Watson's NPI, 1275165557, was assigned on February 5, 2020. Dr. Watson holds Puerto Rico license 16325-I.
- NPI
- 1275165557NPI Registry (opens in a new tab)
- NPI enumeration date
- February 5, 2020
- NPI status
- Active
- Practice phone
- (314) 257-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John Marco Watson practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri
Dr. Watson's primary practice is SSM Health Saint Louis University Hospital, at 1201 S Grand Blvd, Saint Louis, MO 63104 in St. Louis City. The practice phone is (314) 257-8000.
- SSM Health Saint Louis University Hospital1201 S Grand Blvd, Saint Louis, MO 63104 · St. Louis CityPhone(314) 257-8000
Source: Dmand AI Affiliation Data
Dr. John Marco Watson is affiliated with 2 sites of care
Dr. Watson's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Dr. Watson to 1 behavioral health center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Marco Watson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Watson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health Saint Louis University Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Marco Watson is one of 593 general surgeons in Missouri
Surgery is Dr. Watson's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Watson is licensed in Puerto Rico.
Specialties and state licenses
- Surgery, Puerto RicoPrimary
General surgeons near Dr. Watson
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 Marco Watson's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Watson's median patient age at 43, with 100% women.
Dr. Watson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. John Marco Watson wrote 37 Medicare Part D claims in 2024
In 2024, Dr. Watson wrote 37 Medicare Part D claims for 18 patients. 95% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $62 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Watson's Part D claims by kind of drug, 2024
- Generic35 claims95%
- Brand-name and other2 claims5%
Dr. Watson'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: 122024: 118%
Drugs named by CMS: 1 in 2024, 1 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
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Dr. John Marco Watson received $318 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Dr. Watson from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Acera Surgical, Inc. paid the most, $150.
General payments to Dr. Watson by program year, 2024 to 2025
Companies that paid Dr. Watson 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. John Marco Watson'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Marco Watson
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 Marco Watson's NPI number?
Dr. John Marco Watson's NPI number is 1275165557. It was assigned on February 5, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. John Marco Watson?
Dr. John Marco Watson is a general surgeon in Saint Louis, Missouri. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Marco Watson practice?
Dr. Watson practices at 1201 S Grand Blvd, Saint Louis, MO 63104. Dr. Watson's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Dr. Watson to 1 behavioral health center.
What is Dr. John Marco Watson's office phone number?
The practice phone on file for Dr. Watson is (314) 257-8000.
What is Dr. John Marco Watson's medical license number?
Dr. Watson holds Puerto Rico license 16325-I.
Which hospitals is Dr. John Marco Watson affiliated with?
Dr. Watson practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri.
What drugs does Dr. John Marco Watson prescribe most?
In 2024 Medicare Part D data, Dr. Watson's most prescribed drugs by claims were Gabapentin.
Has Dr. John Marco Watson received payments from drug or device companies?
CMS Open Payments shows $318 in general payments to Dr. Watson from 3 companies from 2024 to 2025. The largest total came from Acera Surgical, Inc.
How long has Dr. John Marco Watson been practicing?
Dr. Watson's NPI was assigned in 2020.
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