Dr. John Wesley Hardin, MD
- Medicare services, 2024
- 376
- Medicare patients, 2024
- 318
- Part D claims, 2024
- 222
- Hospital affiliations
- 2
- Medical groups
- 6
- Practice address
- 200 Groton Rd, Ayer, MA 01432
- Practice phone
- Call (978) 784-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nashoba Valley Medical Center (CLOSED)
Ayer, Massachusetts
Find Dr. Hardin's professional email, personal email and mobile number
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Dr. John Wesley Hardin is an emergency medicine physician in Ayer, Massachusetts
Dr. Hardin practices at Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts.
Dr. Hardin's NPI, 1609161959, was assigned on June 15, 2011. Dr. Hardin graduated from Virginia Commonwealth Univ School of Dentistry in 2011. Dr. Hardin holds Massachusetts license 258655.
- NPI
- 1609161959NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375767221
- NPI enumeration date
- June 15, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 784-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Wesley Hardin practices at Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts
Dr. Hardin's primary practice is Nashoba Valley Medical Center (CLOSED), at 200 Groton Rd, Ayer, MA 01432 in Middlesex County. The practice phone is (978) 784-9000.
- Nashoba Valley Medical Center (CLOSED)200 Groton Rd, Ayer, MA 01432 · Middlesex CountyPhone(978) 784-9000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Wesley Hardin is affiliated with 7 sites of care and 6 medical groups
Dr. Hardin's primary practice is Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts. Dr. Hardin is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is Nashoba Valley Medical Center. Dmand AI also links Dr. Hardin to 1 more hospital, 5 medical groups and 4 group practices and clinics, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Wesley Hardin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hardin practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nashoba Valley Medical Center (CLOSED) | Available with a free account |
| +6 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Wesley Hardin is one of 1,483 emergency medicine physicians in Massachusetts
Emergency medicine is Dr. Hardin's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Hardin is licensed in Massachusetts.
Specialties and state licenses
- Emergency medicine, MassachusettsPrimary
Emergency medicine physicians near Dr. Hardin
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. John Wesley Hardin billed Medicare for 376 services in 2024
CMS data shows 376 Medicare services from Dr. Hardin across 4 procedure codes in 2024, for 318 Medicare patients. Medicare paid $37,928 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hardin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4782024: 32332%
- Tests and treatments
- 2023: 472024: 5313%
Dr. Hardin compared with the Massachusetts median for emergency medicine physicians, 2024
- Dr. Hardin
- Massachusetts median
- Medicare services
- 376vs 34110% above
- Medicare patients
- 318vs 3376% below
- Part D claims
- 103vs 362.9 times
Medians across 1,477 emergency medicine physicians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Hardin'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. John Wesley Hardin treated 318 Medicare patients in 2024, average age 73
CMS counts 318 Medicare patients who saw Dr. Hardin in 2024. The largest group is 65 to 74, with 107 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 1.88, 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. Hardin's median patient age at 59, with 53% women.
Dr. Hardin's Medicare patients by age, 2024
Dr. Hardin's Medicare patients by sex, 2024
- Women18558%
- Men13342%
Chronic conditions among Dr. Hardin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Anxiety51%
- Mood disorders47%
- Depression44%
- Ischemic heart disease37%
- Atrial fibrillation32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hardin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Wesley Hardin wrote 222 Medicare Part D claims in 2024
In 2024, Dr. Hardin wrote 222 Medicare Part D claims for 161 patients. 83% of them were for generic drugs. CMS names the drug for 103 of them, across 6 drugs with 11 or more claims each, at $1,261 in total drug cost. In 2023, CMS named 158 claims across 9 drugs.
Dr. Hardin's Part D claims by kind of drug, 2024
- Generic184 claims83%
- Brand-name and other38 claims17%
Dr. Hardin'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. Hardin's Part D claims, 2024
- Opioids12%26 of 222 claims
- Antibiotics34%76 of 222 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: 1582024: 10335%
Drugs named by CMS: 6 in 2024, 9 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. John Wesley Hardin takes part in Medicare
Dr. Hardin 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. John Wesley Hardin graduated from Virginia Commonwealth Univ School of Dentistry
Dr. Hardin graduated from Virginia Commonwealth Univ School of Dentistry in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Wesley Hardin'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 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) |
| 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 Dr. John Wesley Hardin
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 Wesley Hardin's NPI number?
Dr. John Wesley Hardin's NPI number is 1609161959. It was assigned on June 15, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. John Wesley Hardin?
Dr. John Wesley Hardin is an emergency medicine physician in Ayer, Massachusetts. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. John Wesley Hardin practice?
Dr. Hardin practices at 200 Groton Rd, Ayer, MA 01432. Dr. Hardin's primary practice is Nashoba Valley Medical Center (CLOSED) in Ayer, Massachusetts. Dmand AI also links Dr. Hardin to 1 hospital, 5 medical groups and 4 group practices and clinics.
What is Dr. John Wesley Hardin's office phone number?
The practice phone on file for Dr. Hardin is (978) 784-9000.
What is Dr. John Wesley Hardin's medical license number?
Dr. Hardin holds Massachusetts license 258655.
Which hospitals is Dr. John Wesley Hardin affiliated with?
Dr. Hardin is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Hardin to 1 more hospital.
What medical group is Dr. John Wesley Hardin part of?
Dr. Hardin is linked to Nashoba Valley Medical Center. Dmand AI links Dr. Hardin to 5 more medical groups.
Does Dr. John Wesley Hardin accept Medicare?
Yes. CMS data shows Dr. Hardin billed Medicare for 376 services in 2024, and Dr. Hardin accepts Medicare assignment.
How many Medicare patients does Dr. John Wesley Hardin see?
CMS counts 318 Medicare patients who saw Dr. Hardin in 2024, with an average age of 73.
What services does Dr. John Wesley Hardin bill to Medicare?
In 2024, Dr. Hardin's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
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Where did Dr. John Wesley Hardin go to medical school?
Dr. Hardin graduated from Virginia Commonwealth Univ School of Dentistry in 2011.
What drugs does Dr. John Wesley Hardin prescribe most?
In 2024 Medicare Part D data, Dr. Hardin's most prescribed drugs by claims were Morphine Sulfate, Cefpodoxime Proxetil and Cephalexin.
How long has Dr. John Wesley Hardin been practicing?
Dr. Hardin graduated from medical school in 2011, 15 years ago.
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