Dr. Fred S. Markham, MD
- Medicare services, 2022
- 1,536
- Part D claims, 2024
- 23
- Industry payments
- $894
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 1045 Scott Drive, Prescott, AZ 86301
- Practice phone
- Call (928) 778-9603
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Granite Creek Health & Rehabilitation Center
Skilled Nursing Facility · Prescott, Arizona
Find Dr. Markham's professional email, personal email and mobile number
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Dr. Fred S. Markham is an internist in Prescott, Arizona
Dr. Markham practices at Granite Creek Health & Rehabilitation Center in Prescott, Arizona.
Dr. Markham's NPI, 1679538995, was assigned on April 19, 2006. Dr. Markham graduated from University of Arizona College of Medicine in 1980. Dr. Markham holds Arizona license 15168.
- NPI
- 1679538995NPI Registry (opens in a new tab)
- NPI enumeration date
- April 19, 2006
- NPI status
- Active
- Practice phone
- (928) 778-9603
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Fred S. Markham practices at 2 locations in Prescott, Arizona
Dr. Markham's primary practice is Granite Creek Health & Rehabilitation Center, at 1045 Scott Drive, Prescott, AZ 86301 in Yavapai County. The practice phone is (928) 778-9603. Dr. Markham also practices at Granite Creek Health and Rehabilitation Center, 1065 Ruth St, Prescott, AZ 86301.
- Granite Creek Health & Rehabilitation CenterPrimary1045 Scott Drive, Prescott, AZ 86301 · Yavapai CountyPhone(928) 778-9603
- Granite Creek Health and Rehabilitation Center1065 Ruth St, Prescott, AZ 86301 · Yavapai CountyPhone(928) 778-9603
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Fred S. Markham is affiliated with 1 site of care
Dr. Markham's primary practice is Granite Creek Health & Rehabilitation Center in Prescott, Arizona.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Fred S. Markham's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markham practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Granite Creek Health & Rehabilitation Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fred S. Markham is one of 2,420 internists in Arizona
Internal medicine is Dr. Markham's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Markham is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Markham
Counts of internists 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. Fred S. Markham billed Medicare for 1,536 services in 2022
CMS data shows 1,536 Medicare services from Dr. Markham across 15 procedure codes in 2022. Medicare paid $88,886 for them. Every service was in an office.
Dr. Markham's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 9282022: 58737%
- Other services
- 2021: 6012022: 36240%
- Tests and treatments
- 2021: 3172022: 21432%
- Drugs given in the office
- 2021: 2362022: 19916%
- Lab and pathology
- 2021: 712022: 159124%
- Surgery
- 2021: 202022: 1525%
Dr. Markham compared with the Arizona median for internists, 2022
- Dr. Markham
- Arizona median
- Medicare services
- 1,536vs 4763.2 times
- Part D claims
- 28vs 26089% below
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Markham's most billed Medicare procedure codes, 2022
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. Markham?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Markham and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Fred S. Markham's patients have a median age of 82
Across all payers, Dmand AI patient panel data puts Dr. Markham's median patient age at 82, with 49% women.
Dr. Markham's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 82
Patient panel by sex, all payers
- Women49%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. Fred S. Markham wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Markham wrote 23 Medicare Part D claims. 91% of them were for generic drugs. They cover 2 drugs, with $266 in total drug cost. In 2022, CMS named 3,553 claims across 81 drugs.
Dr. Markham's Part D claims by kind of drug, 2024
- Generic21 claims91%
- Brand-name and other2 claims9%
Dr. Markham's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 3,5532023: 2899%
Drugs named by CMS: 2 in 2023, 81 in 2022.
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
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Dr. Fred S. Markham received $894 in industry payments from 2016 to 2019
CMS Open Payments shows 13 general payments to Dr. Markham from 6 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 98% of the total. Amgen Inc. paid the most, $449.
General payments to Dr. Markham by program year, 2016 to 2019
General payments to Dr. Markham by kind, 2016 to 2019
- Food and beverage$87798%
- Education$172%
Companies that paid Dr. Markham the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Fred S. Markham graduated from University of Arizona College of Medicine
Dr. Markham graduated from University of Arizona College of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Fred S. Markham'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 Affiliation DataDmand AI Practice 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 Data |
| 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) |
| 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. Fred S. Markham
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What is Dr. Fred S. Markham's NPI number?
Dr. Fred S. Markham's NPI number is 1679538995. It was assigned on April 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Fred S. Markham?
Dr. Fred S. Markham is an internist in Prescott, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Fred S. Markham practice?
Dr. Markham practices at 1045 Scott Drive, Prescott, AZ 86301. Dr. Markham also practices at 1065 Ruth St, Prescott, AZ 86301. Dr. Markham's primary practice is Granite Creek Health & Rehabilitation Center in Prescott, Arizona.
What is Dr. Fred S. Markham's office phone number?
The practice phone on file for Dr. Markham is (928) 778-9603.
What is Dr. Fred S. Markham's medical license number?
Dr. Markham holds Arizona license 15168.
Does Dr. Fred S. Markham accept Medicare?
Yes. CMS data shows Dr. Markham billed Medicare for 1,536 services in 2022.
What services does Dr. Fred S. Markham bill to Medicare?
In 2022, Dr. Markham's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and injected or infused drug (J3301).
Where did Dr. Fred S. Markham go to medical school?
Dr. Markham graduated from University of Arizona College of Medicine in 1980.
What drugs does Dr. Fred S. Markham prescribe most?
In 2023 Medicare Part D data, Dr. Markham's most prescribed drugs by claims were Omeprazole and Gabapentin.
Has Dr. Fred S. Markham received payments from drug or device companies?
CMS Open Payments shows $894 in general payments to Dr. Markham from 6 companies from 2016 to 2019. The largest total came from Amgen Inc.
How long has Dr. Fred S. Markham been practicing?
Dr. Markham graduated from medical school in 1980, 46 years ago.
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