Dr. Nichon L. Grupka, MD

  • Chattanooga, TN
  • Pathologist
NPI1912973926PAC ID7810992450
Medicare services, 2024
8,460
Medicare patients, 2024
2,154
Hospital affiliations
1
Medical groups
2
State licenses
2
Practice address
2525 Desales Ave, Chattanooga, TN 37404
Practice phone
Call (423) 495-2525
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

CommonSpirit - Memorial Hospital - Chattanooga

Hospital · Chattanooga, Tennessee

See all 3 affiliations

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Dr. Nichon L. Grupka is a pathologist in Chattanooga, Tennessee

Dr. Grupka practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health.

Dr. Grupka's NPI, 1912973926, was assigned on February 28, 2006. Dr. Grupka holds Tennessee license 55245.

NPI and contact details
Medicare PAC ID
7810992450
NPI enumeration date
February 28, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(423) 495-2525
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
52
Medical school graduation
2000

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Nichon L. Grupka practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee

Dr. Grupka's primary practice is CommonSpirit - Memorial Hospital - Chattanooga, at 2525 Desales Ave, Chattanooga, TN 37404 in Hamilton County. The practice phone is (423) 495-2525.

Source: Dmand AI Affiliation Data

Dr. Nichon L. Grupka is affiliated with 1 site of care and 2 medical groups

Dr. Grupka's primary practice is CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health. The medical group on file is Galen Medical Group. Dmand AI also links Dr. Grupka to 1 more medical group, named with a free account.

See all 3 affiliations for Dr. Grupka

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Nichon L. Grupka's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grupka practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
CommonSpirit - Memorial Hospital - ChattanoogaAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Nichon L. Grupka is one of 292 pathologists in Tennessee

Anatomic pathology and clinical pathology is Dr. Grupka's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dmand AI has Dr. Grupka's licenses on file in 2 states: Tennessee and California.

Specialties and state licenses

  • Anatomic pathology and clinical pathology, TennesseePrimaryLicense 55245 · taxonomy 207ZP0102X
  • California licenseLicense A81931

Pathologists near Dr. Grupka

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. Nichon L. Grupka billed Medicare for 8,460 services in 2024

CMS data shows 8,460 Medicare services from Dr. Grupka across 26 procedure codes in 2024, for 2,154 Medicare patients. Medicare paid $161,606 for them.

Medicare services, 20248,460
Medicare patients2,154
Paid by Medicare$161,606
Procedure codes26

Dr. Grupka's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Lab and pathology
2023: 8,9592024: 8,4476%
Other services
2023: 142024: 137%

Where Dr. Grupka's Medicare services took place, 2024

  • In an office6,01971%
  • In a facility2,44129%

Dr. Grupka compared with the Tennessee median for pathologists, 2024

  • Dr. Grupka
  • Tennessee median
Medicare services
8,460vs 1,5005.6 times
Medicare patients
2,154vs 6593.3 times

Medians across 294 pathologists in Tennessee with Dmand AI profiles that report each measure.

Dr. Grupka'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. Nichon L. Grupka treated 2,154 Medicare patients in 2024, average age 76

CMS counts 2,154 Medicare patients who saw Dr. Grupka in 2024. The largest group is 75 to 84, with 953 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.96, 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. Grupka's median patient age at 73, with 57% women.

Medicare patients, 20242,154
Average age76
Average risk score1.96
Also on Medicaid7%

Dr. Grupka's Medicare patients by age, 2024

Dr. Grupka's Medicare patients by sex, 2024

  • Women1,08750%
  • Men1,06750%

Chronic conditions among Dr. Grupka's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis54%
  4. Chronic kidney disease46%
  5. Ischemic heart disease37%
  6. Diabetes36%
  7. Anxiety28%
  8. Mood disorders28%

Share of Medicare patients with each condition. A patient can have several.

Dr. Grupka's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women57%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Dr. Nichon L. Grupka takes part in Medicare

Dr. Grupka 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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Sources for Dr. Nichon L. Grupka's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Nichon L. Grupka

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. Nichon L. Grupka's NPI number?

Dr. Nichon L. Grupka's NPI number is 1912973926. It was assigned on February 28, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Nichon L. Grupka?

Dr. Nichon L. Grupka is a pathologist in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).

Where does Dr. Nichon L. Grupka practice?

Dr. Grupka practices at 2525 Desales Ave, Chattanooga, TN 37404. Dr. Grupka's primary practice is CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health. Dmand AI also links Dr. Grupka to 1 medical group.

What is Dr. Nichon L. Grupka's office phone number?

The practice phone on file for Dr. Grupka is (423) 495-2525.

What is Dr. Nichon L. Grupka's medical license number?

Dr. Grupka holds Tennessee license 55245, one of the licenses on file in 2 states.

Which states has Dr. Nichon L. Grupka been licensed in?

Dmand AI has state licenses on file for Dr. Grupka in Tennessee and California.

Which hospitals is Dr. Nichon L. Grupka affiliated with?

Dr. Grupka practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee.

What medical group is Dr. Nichon L. Grupka part of?

Dr. Grupka is linked to Galen Medical Group. Dmand AI links Dr. Grupka to 1 more medical group.

Does Dr. Nichon L. Grupka accept Medicare?

Yes. CMS data shows Dr. Grupka billed Medicare for 8,460 services in 2024, and Dr. Grupka accepts Medicare assignment.

How many Medicare patients does Dr. Nichon L. Grupka see?

CMS counts 2,154 Medicare patients who saw Dr. Grupka in 2024, with an average age of 76.

What services does Dr. Nichon L. Grupka bill to Medicare?

In 2024, Dr. Grupka's most billed Medicare services were lab and pathology test (86320), lab and pathology test (86334) and lab and pathology test (88305).

How long has Dr. Nichon L. Grupka been practicing?

Dr. Grupka graduated from medical school in 2000, 26 years ago.

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