Dr. Mervin J. Griffin, MD
- Medicare services, 2024
- 372
- Medicare patients, 2024
- 255
- Part D claims, 2024
- 276
- Hospital affiliations
- 4
- Industry payments
- $511
- Practice address
- 8 Doctors Park Rd, Mount Vernon, IL 62864
- Practice phone
- Call (618) 244-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Griffin'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. Mervin J. Griffin is an emergency medicine physician in Mount Vernon, Illinois
Dr. Griffin practices at Deaconess Illinois Crossroads in Mount Vernon, Illinois, part of Deaconess Health System.
Dr. Griffin's NPI, 1487636726, was assigned on November 14, 2005. Dr. Griffin holds New Jersey license 25MA08065400.
- NPI
- 1487636726NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961471388
- NPI enumeration date
- November 14, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (618) 244-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mervin J. Griffin practices at Deaconess Illinois Crossroads in Mount Vernon, Illinois
Dr. Griffin's primary practice is Deaconess Illinois Crossroads, at 8 Doctors Park Rd, Mount Vernon, IL 62864 in Jefferson County. The practice phone is (618) 244-5500.
- Deaconess Illinois Crossroads8 Doctors Park Rd, Mount Vernon, IL 62864 · Jefferson CountyPhone(618) 244-5500
Source: Dmand AI Affiliation Data
Dr. Mervin J. Griffin is affiliated with 7 sites of care and 16 medical groups
Dr. Griffin's primary practice is Deaconess Illinois Crossroads in Mount Vernon, Illinois, part of Deaconess Health System. Dr. Griffin is also affiliated with Capital Health Medical Center - Hopewell. The medical group on file is Integritas Providers. Dmand AI also links Dr. Griffin to 2 more hospitals, 15 medical groups, 1 community health center, 1 physician office and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mervin J. Griffin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Griffin practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Deaconess Illinois Crossroads | Available with a free account |
| +6 more sites and 15 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Deaconess Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mervin J. Griffin is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Griffin's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Griffin's licenses on file in 3 states: New Jersey, Alabama and New York.
Specialties and state licenses
- Emergency medicine, New JerseyPrimary
- Alabama license
- New York license
Emergency medicine physicians near Dr. Griffin
Counts of emergency medicine physicians 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. Mervin J. Griffin billed Medicare for 372 services in 2024
CMS data shows 372 Medicare services from Dr. Griffin across 9 procedure codes in 2024, for 255 Medicare patients. Medicare paid $26,133 for them.
Dr. Griffin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4142024: 30227%
- Other services
- 2023: 212024: 3462%
- Tests and treatments
- 2023: 382024: 2047%
- Lab and pathology
- 2023: 642024: 1675%
Where Dr. Griffin's Medicare services took place, 2024
- In an office28376%
- In a facility8924%
Dr. Griffin compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Griffin
- Illinois median
- Medicare services
- 372vs 27436% above
- Medicare patients
- 255vs 2737% below
- Part D claims
- 117vs 452.6 times
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Griffin'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mervin J. Griffin treated 255 Medicare patients in 2024, average age 66
CMS counts 255 Medicare patients who saw Dr. Griffin in 2024. The largest group is 65 to 74, with 98 patients. 70% of them have high blood pressure, and 62% have high cholesterol. 48% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Griffin's median patient age at 35, with 39% women.
Dr. Griffin's Medicare patients by age, 2024
Dr. Griffin's Medicare patients by sex, 2024
- Women14758%
- Men10842%
Chronic conditions among Dr. Griffin's Medicare patients, 2024
- High blood pressure70%
- High cholesterol62%
- Diabetes38%
- Arthritis37%
- Anxiety25%
- Mood disorders21%
- Ischemic heart disease18%
- Tobacco use18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Griffin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women39%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mervin J. Griffin wrote 276 Medicare Part D claims in 2024
In 2024, Dr. Griffin wrote 276 Medicare Part D claims for 142 patients. 91% of them were for generic drugs. CMS names the drug for 117 of them, across 5 drugs with 11 or more claims each, at $1,351 in total drug cost. In 2023, CMS named 57 claims across 2 drugs.
Dr. Griffin's Part D claims by kind of drug, 2024
- Generic252 claims91%
- Brand-name and other24 claims9%
Dr. Griffin'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.
Drug classes CMS tracks in Dr. Griffin's Part D claims, 2024
- Opioids8%22 of 276 claims
- Antibiotics16%43 of 276 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 572024: 117105%
Drugs named by CMS: 5 in 2024, 2 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
How Dr. Mervin J. Griffin takes part in Medicare
Dr. Griffin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mervin J. Griffin received $511 in industry payments from 2016 to 2025
CMS Open Payments shows 23 general payments to Dr. Griffin from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $161.
General payments to Dr. Griffin by program year, 2016 to 2025
Companies that paid Dr. Griffin the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mervin J. Griffin'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 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 and Drug (CMS) (opens in a new tab)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) |
| 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. Mervin J. Griffin
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. Mervin J. Griffin's NPI number?
Dr. Mervin J. Griffin's NPI number is 1487636726. It was assigned on November 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mervin J. Griffin?
Dr. Mervin J. Griffin is an emergency medicine physician in Mount Vernon, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mervin J. Griffin practice?
Dr. Griffin practices at 8 Doctors Park Rd, Mount Vernon, IL 62864. Dr. Griffin's primary practice is Deaconess Illinois Crossroads in Mount Vernon, Illinois, part of Deaconess Health System. Dmand AI also links Dr. Griffin to 2 hospitals, 15 medical groups, 1 community health center, 1 physician office and 1 group practice or clinic.
What is Dr. Mervin J. Griffin's office phone number?
The practice phone on file for Dr. Griffin is (618) 244-5500.
What is Dr. Mervin J. Griffin's medical license number?
Dr. Griffin holds New Jersey license 25MA08065400, one of the licenses on file in 3 states.
Which states has Dr. Mervin J. Griffin been licensed in?
Dmand AI has state licenses on file for Dr. Griffin in New Jersey, Alabama and New York.
Which hospitals is Dr. Mervin J. Griffin affiliated with?
Dr. Griffin practices at Deaconess Illinois Crossroads in Mount Vernon, Illinois. Dr. Griffin is also affiliated with Capital Health Medical Center - Hopewell. Dmand AI links Dr. Griffin to 2 more hospitals.
What medical group is Dr. Mervin J. Griffin part of?
Dr. Griffin is linked to Integritas Providers. Dmand AI links Dr. Griffin to 15 more medical groups.
Does Dr. Mervin J. Griffin accept Medicare?
Yes. CMS data shows Dr. Griffin billed Medicare for 372 services in 2024, and Dr. Griffin accepts Medicare assignment.
How many Medicare patients does Dr. Mervin J. Griffin see?
CMS counts 255 Medicare patients who saw Dr. Griffin in 2024, with an average age of 66.
Show 4 more questionsShow fewer questions
What services does Dr. Mervin J. Griffin bill to Medicare?
In 2024, Dr. Griffin's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and emergency department visit (99283).
What drugs does Dr. Mervin J. Griffin prescribe most?
In 2024 Medicare Part D data, Dr. Griffin's most prescribed drugs by claims were Naproxen, Amoxicillin-Clavulanate Potass and Albuterol Sulfate Hfa.
Has Dr. Mervin J. Griffin received payments from drug or device companies?
CMS Open Payments shows $511 in general payments to Dr. Griffin from 6 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Mervin J. Griffin been practicing?
Dr. Griffin graduated from medical school in 1996, 30 years ago.
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