Dr. William Douglas Baker, MD
- Medicare services, 2024
- 3,808
- Medicare patients, 2024
- 366
- Part D claims, 2024
- 1,513
- MIPS score, 2024
- 94
- Hospital affiliations
- 3
- Practice address
- 200 Medical Park NE Dr, Concord, NC 28025
- Practice phone
- Call (980) 993-2230
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Atrium Health Rheumatology
Concord, North Carolina
Find Dr. Baker'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. William Douglas Baker is an internist in Concord, North Carolina
Dr. Baker practices at Atrium Health Rheumatology in Concord, North Carolina.
Dr. Baker's NPI, 1932589660, was assigned on June 8, 2015. Dr. Baker graduated from Medical College of Georgia School of Medicine in 2015. Dr. Baker holds North Carolina license 2020-01060.
- NPI
- 1932589660NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830483809
- NPI enumeration date
- June 8, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (980) 993-2230
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Douglas Baker practices at Atrium Health Rheumatology in Concord, North Carolina
Dr. Baker's primary practice is Atrium Health Rheumatology, at 200 Medical Park NE Dr, Concord, NC 28025 in Cabarrus County. The practice phone is (980) 993-2230.
- Atrium Health Rheumatology200 Medical Park NE Dr, Concord, NC 28025 · Cabarrus CountyPhone(980) 993-2230
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Douglas Baker is affiliated with 5 sites of care and 2 medical groups
Dr. Baker's primary practice is Atrium Health Rheumatology in Concord, North Carolina. Dr. Baker is also affiliated with Atrium Health Carolinas Medical Center. The medical group on file is Atrium Health Cleveland Imaging. Dmand AI also links Dr. Baker to 2 more hospitals, 1 group practice or clinic and 1 medical group, 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. William Douglas Baker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baker practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Atrium Health Rheumatology | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Douglas Baker is one of 3,705 internists in North Carolina
Internal medicine is Dr. Baker's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Baker is licensed in North Carolina.
Specialties and state licenses
- Internal medicine, North CarolinaPrimary
Internists near Dr. Baker
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. William Douglas Baker billed Medicare for 3,808 services in 2024
CMS data shows 3,808 Medicare services from Dr. Baker across 14 procedure codes in 2024, for 366 Medicare patients. Medicare paid $96,988 for them. Every service was in an office.
Dr. Baker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2,0352024: 2,50523%
- Office and hospital visits
- 2023: 5252024: 5607%
- Tests and treatments
- 2023: 6602024: 53319%
- Other services
- 2023: 02024: 210
Dr. Baker compared with the North Carolina median for internists, 2024
- Dr. Baker
- North Carolina median
- Medicare services
- 3,808vs 5217.3 times
- Medicare patients
- 366vs 18598% above
- Part D claims
- 1,372vs 2725.0 times
Medians across 3,695 internists in North Carolina with Dmand AI profiles that report each measure.
Dr. Baker'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Baker and other internists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Douglas Baker treated 366 Medicare patients in 2024, average age 73
CMS counts 366 Medicare patients who saw Dr. Baker in 2024. The largest group is 65 to 74, with 171 patients. 72% of them have arthritis, and 72% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Baker's median patient age at 68, with 75% women.
Dr. Baker's Medicare patients by age, 2024
Dr. Baker's Medicare patients by sex, 2024
- Women27375%
- Men9325%
Chronic conditions among Dr. Baker's Medicare patients, 2024
- Arthritis72%
- High cholesterol72%
- High blood pressure70%
- Osteoporosis42%
- Ischemic heart disease25%
- Mood disorders25%
- Anxiety23%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Baker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women75%
- Men24%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Douglas Baker wrote 1,513 Medicare Part D claims in 2024
In 2024, Dr. Baker wrote 1,513 Medicare Part D claims for 349 patients. 81% of them were for generic drugs. CMS names the drug for 1,372 of them, across 21 drugs with 11 or more claims each, at $1,218,277 in total drug cost. In 2023, CMS named 1,161 claims across 20 drugs.
Dr. Baker's Part D claims by kind of drug, 2024
- Generic1,222 claims81%
- Brand-name and other291 claims19%
Dr. Baker'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1612024: 1,37218%
Drugs named by CMS: 21 in 2024, 20 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
Dr. William Douglas Baker scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Baker for performance year 2024, reported through an alternative payment model (APM). Dr. Baker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Baker as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Baker's MIPS scores, performance year 2024
- 94of 100Final score
- 81.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. William Douglas Baker received $15 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Baker from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $15.
Companies that paid Dr. Baker the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Douglas Baker graduated from Medical College of Georgia School of Medicine
Dr. Baker graduated from Medical College of Georgia School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Douglas Baker'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)Clinician Public Reporting: Overall MIPS Performance (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. William Douglas Baker
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. William Douglas Baker's NPI number?
Dr. William Douglas Baker's NPI number is 1932589660. It was assigned on June 8, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. William Douglas Baker?
Dr. William Douglas Baker is an internist in Concord, North Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Douglas Baker practice?
Dr. Baker practices at 200 Medical Park NE Dr, Concord, NC 28025. Dr. Baker's primary practice is Atrium Health Rheumatology in Concord, North Carolina. Dmand AI also links Dr. Baker to 2 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. William Douglas Baker's office phone number?
The practice phone on file for Dr. Baker is (980) 993-2230.
What is Dr. William Douglas Baker's medical license number?
Dr. Baker holds North Carolina license 2020-01060.
Which hospitals is Dr. William Douglas Baker affiliated with?
Dr. Baker is affiliated with Atrium Health Carolinas Medical Center. Dmand AI links Dr. Baker to 2 more hospitals.
What medical group is Dr. William Douglas Baker part of?
Dr. Baker is linked to Atrium Health Cleveland Imaging. Dmand AI links Dr. Baker to 1 more medical group.
Does Dr. William Douglas Baker accept Medicare?
Yes. CMS data shows Dr. Baker billed Medicare for 3,808 services in 2024, and Dr. Baker accepts Medicare assignment.
Does Dr. William Douglas Baker offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Baker as offering telehealth services.
What is Dr. William Douglas Baker's MIPS score?
Dr. Baker's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. William Douglas Baker see?
CMS counts 366 Medicare patients who saw Dr. Baker in 2024, with an average age of 73.
What services does Dr. William Douglas Baker bill to Medicare?
In 2024, Dr. Baker's most billed Medicare services were injected or infused drug (J0897), injected or infused drug (J1010) and office visit, established patient (99214).
Where did Dr. William Douglas Baker go to medical school?
Dr. Baker graduated from Medical College of Georgia School of Medicine in 2015.
What drugs does Dr. William Douglas Baker prescribe most?
In 2024 Medicare Part D data, Dr. Baker's most prescribed drugs by claims were Hydroxychloroquine Sulfate, Methotrexate and Prednisone.
Has Dr. William Douglas Baker received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Dr. Baker from 1 company from 2022 to 2022. The largest total came from Amgen Inc.
How long has Dr. William Douglas Baker been practicing?
Dr. Baker graduated from medical school in 2015, 11 years ago.
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