Dr. Cynthia Claudine Griggs, MD
- Medicare services, 2024
- 130
- Medicare patients, 2024
- 39
- Part D claims, 2024
- 758
- Hospital affiliations
- 3
- Industry payments
- $919
- Practice address
- 23077 Greenfield Rd, Southfield, MI 48075
- Practice phone
- Call (313) 341-7870
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CC Griggs Holding, Ltd.
Southfield, Michigan
Find Dr. Griggs' 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. Cynthia Claudine Griggs is a nephrologist in Southfield, Michigan
Dr. Griggs practices at CC Griggs Holding, Ltd. in Southfield, Michigan.
Dr. Griggs' NPI, 1154421774, was assigned on September 24, 2006. Dr. Griggs graduated from Wayne State University School of Medicine in 1993. Dr. Griggs holds Michigan license 4301061868.
- NPI
- 1154421774NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345209391
- NPI enumeration date
- September 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (313) 341-7870
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cynthia Claudine Griggs practices at CC Griggs Holding, Ltd. in Southfield, Michigan
Dr. Griggs' primary practice is CC Griggs Holding, Ltd., at 23077 Greenfield Rd, Southfield, MI 48075 in Oakland County. The practice phone is (313) 341-7870.
- CC Griggs Holding, Ltd.23077 Greenfield Rd, Southfield, MI 48075 · Oakland CountyPhone(313) 341-7870
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Cynthia Claudine Griggs is affiliated with 5 sites of care and 1 medical group
Dr. Griggs' primary practice is CC Griggs Holding, Ltd. in Southfield, Michigan. Dr. Griggs is also affiliated with Corewell Health William Beaumont University Hospital. The medical group on file is CC Griggs Nephrology PC. Dmand AI also links Dr. Griggs to 2 more hospitals and 1 home health agency, 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. Cynthia Claudine Griggs' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Griggs practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CC Griggs Holding, Ltd. | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Cynthia Claudine Griggs is one of 310 nephrologists in Michigan
Nephrology is Dr. Griggs' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Griggs is licensed in Michigan.
Specialties and state licenses
- Nephrology, MichiganPrimary
Nephrologists near Dr. Griggs
Counts of nephrologists 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. Cynthia Claudine Griggs billed Medicare for 130 services in 2024
CMS data shows 130 Medicare services from Dr. Griggs across 4 procedure codes in 2024, for 39 Medicare patients. Medicare paid $12,140 for them.
Dr. Griggs' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2022024: 13036%
Where Dr. Griggs' Medicare services took place, 2024
- In an office4535%
- In a facility8565%
Dr. Griggs compared with the Michigan median for nephrologists, 2024
- Dr. Griggs
- Michigan median
- Medicare services
- 130vs 84985% below
- Medicare patients
- 39vs 26986% below
- Part D claims
- 482vs 57416% below
Medians across 310 nephrologists in Michigan with Dmand AI profiles that report each measure.
Dr. Griggs' 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Griggs and other nephrologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cynthia Claudine Griggs treated 39 Medicare patients in 2024, average age 70
CMS counts 39 Medicare patients who saw Dr. Griggs in 2024. The largest group is under 65, with 12 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 51% are also on Medicaid. Their average risk score is 4.53, 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. Griggs' median patient age at 70, with 61% women.
Dr. Griggs' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Griggs' Medicare patients by sex, 2024
- Women2667%
- Men1333%
Chronic conditions among Dr. Griggs' Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- Diabetes74%
- Heart failure69%
- High cholesterol67%
- Arthritis59%
- Ischemic heart disease54%
- COPD49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Griggs' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Cynthia Claudine Griggs wrote 758 Medicare Part D claims in 2024
In 2024, Dr. Griggs wrote 758 Medicare Part D claims for 67 patients. 89% of them were for generic drugs. CMS names the drug for 482 of them, across 23 drugs with 11 or more claims each, at $15,799 in total drug cost. In 2023, CMS named 974 claims across 39 drugs.
Dr. Griggs' Part D claims by kind of drug, 2024
- Generic676 claims89%
- Brand-name and other82 claims11%
Dr. Griggs' 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. Griggs' Part D claims, 2024
- Opioids8%60 of 758 claims
- Antibiotics6%48 of 758 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: 9742024: 48251%
Drugs named by CMS: 23 in 2024, 39 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. Cynthia Claudine Griggs takes part in Medicare
Dr. Griggs 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. Cynthia Claudine Griggs received $919 in industry payments from 2017 to 2025
CMS Open Payments shows 44 general payments to Dr. Griggs from 12 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $360.
General payments to Dr. Griggs by program year, 2017 to 2025
Companies that paid Dr. Griggs the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cynthia Claudine Griggs graduated from Wayne State University School of Medicine
Dr. Griggs graduated from Wayne State University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cynthia Claudine Griggs'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) |
| 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) |
| 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. Cynthia Claudine Griggs
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. Cynthia Claudine Griggs' NPI number?
Dr. Cynthia Claudine Griggs' NPI number is 1154421774. It was assigned on September 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Cynthia Claudine Griggs?
Dr. Cynthia Claudine Griggs is a nephrologist in Southfield, Michigan. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Cynthia Claudine Griggs practice?
Dr. Griggs practices at 23077 Greenfield Rd, Southfield, MI 48075. Dr. Griggs' primary practice is CC Griggs Holding, Ltd. in Southfield, Michigan. Dmand AI also links Dr. Griggs to 2 hospitals and 1 home health agency.
What is Dr. Cynthia Claudine Griggs' office phone number?
The practice phone on file for Dr. Griggs is (313) 341-7870.
What is Dr. Cynthia Claudine Griggs' medical license number?
Dr. Griggs holds Michigan license 4301061868.
Which hospitals is Dr. Cynthia Claudine Griggs affiliated with?
Dr. Griggs is affiliated with Corewell Health William Beaumont University Hospital. Dmand AI links Dr. Griggs to 2 more hospitals.
What medical group is Dr. Cynthia Claudine Griggs part of?
Dr. Griggs is linked to CC Griggs Nephrology PC.
Does Dr. Cynthia Claudine Griggs accept Medicare?
Yes. CMS data shows Dr. Griggs billed Medicare for 130 services in 2024, and Dr. Griggs accepts Medicare assignment.
How many Medicare patients does Dr. Cynthia Claudine Griggs see?
CMS counts 39 Medicare patients who saw Dr. Griggs in 2024, with an average age of 70.
What services does Dr. Cynthia Claudine Griggs bill to Medicare?
In 2024, Dr. Griggs' most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and hospital inpatient care (99232).
Show 4 more questionsShow fewer questions
Where did Dr. Cynthia Claudine Griggs go to medical school?
Dr. Griggs graduated from Wayne State University School of Medicine in 1993.
What drugs does Dr. Cynthia Claudine Griggs prescribe most?
In 2024 Medicare Part D data, Dr. Griggs' most prescribed drugs by claims were Amlodipine Besylate, Furosemide and Prednisone.
Has Dr. Cynthia Claudine Griggs received payments from drug or device companies?
CMS Open Payments shows $919 in general payments to Dr. Griggs from 12 companies from 2017 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Cynthia Claudine Griggs been practicing?
Dr. Griggs graduated from medical school in 1993, 33 years ago.
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