Dr. Gregory Mark Chamberlin, MD
- Medicare services, 2024
- 12
- Medicare patients, 2024
- 16
- Hospital affiliations
- 6
- Industry payments
- $51
- Medical groups
- 2
- Practice address
- 5301 Virginia Way, Brentwood, TN 37027
- Practice phone
- Call (615) 221-4400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Associated Pathologists DBA Pathgroup
Brentwood, Tennessee
Find Dr. Chamberlin'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. Gregory Mark Chamberlin is a pathologist in Brentwood, Tennessee
Dr. Chamberlin practices at Associated Pathologists DBA Pathgroup in Brentwood, Tennessee.
Dr. Chamberlin's NPI, 1861981250, was assigned on May 1, 2018. Dr. Chamberlin holds North Carolina license 2022-01454.
- NPI
- 1861981250NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941565279
- NPI enumeration date
- May 1, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 221-4400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Mark Chamberlin practices at Associated Pathologists DBA Pathgroup in Brentwood, Tennessee
Dr. Chamberlin's primary practice is Associated Pathologists DBA Pathgroup, at 5301 Virginia Way, Brentwood, TN 37027 in Williamson County. The practice phone is (615) 221-4400.
- Associated Pathologists DBA Pathgroup5301 Virginia Way, Brentwood, TN 37027 · Williamson CountyPhone(615) 221-4400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory Mark Chamberlin is affiliated with 7 sites of care and 2 medical groups
Dr. Chamberlin's primary practice is Associated Pathologists DBA Pathgroup in Brentwood, Tennessee. Dr. Chamberlin is also affiliated with Baptist Memorial Hospital-Memphis. The medical group on file is PathGroup. Dmand AI also links Dr. Chamberlin to 5 more hospitals and 1 medical group, 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 Dr. Gregory Mark Chamberlin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chamberlin practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Associated Pathologists DBA Pathgroup | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Mark Chamberlin is one of 47 pathologists in Tennessee
Anatomic pathology is Dr. Chamberlin's primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Dr. Chamberlin is licensed in North Carolina.
Specialties and state licenses
- Anatomic pathology, North CarolinaPrimary
Pathologists near Dr. Chamberlin
Counts of pathologists 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. Gregory Mark Chamberlin billed Medicare for 12 services in 2024
CMS data shows 12 Medicare services from Dr. Chamberlin across 1 procedure code in 2024, for 16 Medicare patients. Medicare paid $330 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chamberlin compared with the Tennessee median for pathologists, 2024
- Dr. Chamberlin
- Tennessee median
- Medicare services
- 12vs 69798% below
- Medicare patients
- 16vs 26694% below
Medians across 32 pathologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Chamberlin'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.
Need commercial claims for Dr. Chamberlin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chamberlin and other pathologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Mark Chamberlin treated 16 Medicare patients in 2024, average age 73
CMS counts 16 Medicare patients who saw Dr. Chamberlin in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chamberlin's median patient age at 61, with 60% women.
Dr. Chamberlin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chamberlin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Gregory Mark Chamberlin takes part in Medicare
Dr. Chamberlin 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. Gregory Mark Chamberlin received $51 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Chamberlin from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Carl Zeiss Meditec USA, Inc. paid the most, $51.
Companies that paid Dr. Chamberlin the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gregory Mark Chamberlin'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 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) |
| 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. Gregory Mark Chamberlin
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. Gregory Mark Chamberlin's NPI number?
Dr. Gregory Mark Chamberlin's NPI number is 1861981250. It was assigned on May 1, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Mark Chamberlin?
Dr. Gregory Mark Chamberlin is a pathologist in Brentwood, Tennessee. The primary specialty in the NPI Registry is Anatomic Pathology Physician (taxonomy code 207ZP0101X).
Where does Dr. Gregory Mark Chamberlin practice?
Dr. Chamberlin practices at 5301 Virginia Way, Brentwood, TN 37027. Dr. Chamberlin's primary practice is Associated Pathologists DBA Pathgroup in Brentwood, Tennessee. Dmand AI also links Dr. Chamberlin to 5 hospitals and 1 medical group.
What is Dr. Gregory Mark Chamberlin's office phone number?
The practice phone on file for Dr. Chamberlin is (615) 221-4400.
What is Dr. Gregory Mark Chamberlin's medical license number?
Dr. Chamberlin holds North Carolina license 2022-01454.
Which hospitals is Dr. Gregory Mark Chamberlin affiliated with?
Dr. Chamberlin is affiliated with Baptist Memorial Hospital-Memphis. Dmand AI links Dr. Chamberlin to 5 more hospitals.
What medical group is Dr. Gregory Mark Chamberlin part of?
Dr. Chamberlin is linked to PathGroup. Dmand AI links Dr. Chamberlin to 1 more medical group.
Does Dr. Gregory Mark Chamberlin accept Medicare?
Yes. CMS data shows Dr. Chamberlin billed Medicare for 12 services in 2024, and Dr. Chamberlin accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Mark Chamberlin see?
CMS counts 16 Medicare patients who saw Dr. Chamberlin in 2024, with an average age of 73.
What services does Dr. Gregory Mark Chamberlin bill to Medicare?
In 2024, Dr. Chamberlin's most billed Medicare services were lab and pathology test (88305).
Has Dr. Gregory Mark Chamberlin received payments from drug or device companies?
CMS Open Payments shows $51 in general payments to Dr. Chamberlin from 1 company from 2023 to 2023. The largest total came from Carl Zeiss Meditec USA, Inc.
How long has Dr. Gregory Mark Chamberlin been practicing?
Dr. Chamberlin graduated from medical school in 2018, 8 years ago.
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