Pathol Res Pract
ExtremitiesFatal OutcomeHeart Atria
Dr. Douglas J. Freeman, MD
NPI1588760110PAC ID4587654157
- Medicare services, 2024
- 1,760
- Medicare patients, 2024
- 507
- Part D claims, 2024
- 8,106
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1200 B Gale Wilson Blvd, Fairfield, CA 94533
- Practice phone
- Call (707) 646-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Freeman'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. Douglas J. Freeman is a family medicine physician in Fairfield, California
Dr. Freeman practices at NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare.
Dr. Freeman's NPI, 1588760110, was assigned on September 14, 2006. Dr. Freeman graduated from Saint Louis University School Of Medicine in 1995. Dr. Freeman's California license number on file is C 51473.
NPI and contact details
- NPI
- 1588760110NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587654157
- NPI enumeration date
- September 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 646-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas J. Freeman practices at NorthBay Medical Center in Fairfield, California
Dr. Freeman's primary practice is NorthBay Medical Center, at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County. The practice phone is (707) 646-5000.
- NorthBay Medical Center1200 B Gale Wilson Blvd, Fairfield, CA 94533 · Solano CountyPhone(707) 646-5000
Source: Dmand AI Affiliation Data
Dr. Douglas J. Freeman is affiliated with 8 sites of care and 2 medical groups
Dr. Freeman's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. The medical group on file is NorthBay Medical Center. Dmand AI also links Dr. Freeman to 5 more home health agencies, 2 group practices and clinics and 1 medical group, each named with a free account.
NorthBay Medical Center5 home health agenciesNames with a free account2 group practices and clinicsNames with a free account1 medical groupName with a free account
See all 10 affiliations for Dr. FreemanSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Douglas J. Freeman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Freeman practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NorthBay Medical Center | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Douglas J. Freeman is one of 15,680 family medicine physicians in California
Family medicine is Dr. Freeman's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Freeman is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Freeman's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Illinois license
Clinical focus
Dmand AI lists acid reflux, acute kidney failure, acute mini-stroke (TIA), acute sinusitis, acute skin infection, alzheimer's disease, aneurysm and ankle or foot injury among the conditions Dr. Freeman treats.
Family medicine physicians near Dr. Freeman
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
15,680family medicine physicians in California41family medicine physicians in Fairfield19family medicine physicians at NorthBay Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Douglas J. Freeman billed Medicare for 1,760 services in 2024
CMS data shows 1,760 Medicare services from Dr. Freeman across 17 procedure codes in 2024, for 507 Medicare patients. Medicare paid $179,398 for them. Every service was in an office.
Medicare services, 20241,760
Medicare patients507
Paid by Medicare$179,398
Procedure codes17
Dr. Freeman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,4322024: 1,17318%
- Other services
- 2023: 5882024: 45123%
- Tests and treatments
- 2023: 1162024: 13617%
Dr. Freeman compared with the California median for family medicine physicians, 2024
- Dr. Freeman
- California median
- Medicare services
- 1,760vs 2467.2 times
- Medicare patients
- 507vs 1184.3 times
- Part D claims
- 7,398vs 8338.9 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Freeman'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. Freeman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Freeman and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas J. Freeman treated 507 Medicare patients in 2024, average age 77
CMS counts 507 Medicare patients who saw Dr. Freeman in 2024. The largest group is 75 to 84, with 184 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Freeman's median patient age at 60, with 52% women.
Medicare patients, 2024507
Average age77
Average risk score1.26
Also on Medicaid19%
Dr. Freeman's Medicare patients by age, 2024
Dr. Freeman's Medicare patients by sex, 2024
- Women25450%
- Men25350%
Chronic conditions among Dr. Freeman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis47%
- Diabetes29%
- Chronic kidney disease22%
- Ischemic heart disease22%
- Mood disorders21%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Freeman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas J. Freeman wrote 8,106 Medicare Part D claims in 2024
In 2024, Dr. Freeman wrote 8,106 Medicare Part D claims for 545 patients. 86% of them were for generic drugs. CMS names the drug for 7,398 of them, across 122 drugs with 11 or more claims each, at $985,153 in total drug cost. In 2023, CMS named 7,004 claims across 122 drugs.
Part D claims, 20248,106
Drugs named by CMS122
Total drug cost$985,153
Part D patients545
Dr. Freeman's Part D claims by kind of drug, 2024
- Generic7,009 claims86%
- Brand-name1,053 claims13%
- Other44 claims1%
Dr. Freeman'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.
Drug classes CMS tracks in Dr. Freeman's Part D claims, 2024
- Opioids2%195 of 8,106 claims
- Antibiotics1%44 of 8,106 claims
- Antipsychotics, patients 65 and over1%51 of 8,106 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: 7,0042024: 7,3986%
Drugs named by CMS: 122 in 2024, 122 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. Douglas J. Freeman offers telehealth to Medicare patients
Dr. Freeman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Freeman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Douglas J. Freeman has 1 publication on record
Dmand AI links 1 paper to Dr. Freeman in 2020.
Papers1
Recent publications by Dr. Freeman
See who Dr. Freeman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Freeman works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Douglas J. Freeman received $730 in industry payments from 2022 to 2025
CMS Open Payments shows 12 general payments to Dr. Freeman from 7 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $178.
General payments to Dr. Freeman by program year, 2022 to 2025
Companies that paid Dr. Freeman the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Douglas J. Freeman graduated from Saint Louis University School Of Medicine
Dr. Freeman graduated from Saint Louis University School Of Medicine in 1995.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Douglas J. Freeman accepts plans from 15 insurance carriers
Dr. Freeman is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Freeman accepts, by number of carriers
- Medicare9
- PPO9
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Douglas J. Freeman'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 | Dmand AI Affiliation 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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Douglas J. Freeman
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. Douglas J. Freeman's NPI number?
Dr. Douglas J. Freeman's NPI number is 1588760110. It was assigned on September 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas J. Freeman?
Dr. Douglas J. Freeman is a family medicine physician in Fairfield, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Douglas J. Freeman practice?
Dr. Freeman practices at 1200 B Gale Wilson Blvd, Fairfield, CA 94533. Dr. Freeman's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dmand AI also links Dr. Freeman to 5 home health agencies, 2 group practices and clinics and 1 medical group.
What is Dr. Douglas J. Freeman's office phone number?
The practice phone on file for Dr. Freeman is (707) 646-5000.
What is Dr. Douglas J. Freeman's medical license number?
Dr. Freeman's California license number on file is C 51473, one of the licenses on file in 2 states.
Which states has Dr. Douglas J. Freeman been licensed in?
Dmand AI has state licenses on file for Dr. Freeman in California (2004 to 2025) and Illinois (1996 to 2005).
Which hospitals is Dr. Douglas J. Freeman affiliated with?
Dr. Freeman practices at NorthBay Medical Center in Fairfield, California.
What medical group is Dr. Douglas J. Freeman part of?
Dr. Freeman is linked to NorthBay Medical Center. Dmand AI links Dr. Freeman to 1 more medical group.
Does Dr. Douglas J. Freeman accept Medicare?
Yes. CMS data shows Dr. Freeman billed Medicare for 1,760 services in 2024, and Dr. Freeman accepts Medicare assignment.
Does Dr. Douglas J. Freeman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Freeman as offering telehealth services.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Douglas J. Freeman see?
CMS counts 507 Medicare patients who saw Dr. Freeman in 2024, with an average age of 77.
Is Dr. Douglas J. Freeman board certified?
Yes. Dr. Freeman is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Douglas J. Freeman bill to Medicare?
In 2024, Dr. Freeman's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and care management and other visits (99443).
Where did Dr. Douglas J. Freeman go to medical school?
Dr. Freeman graduated from Saint Louis University School Of Medicine in 1995.
What drugs does Dr. Douglas J. Freeman prescribe most?
In 2024 Medicare Part D data, Dr. Freeman's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Douglas J. Freeman received payments from drug or device companies?
CMS Open Payments shows $730 in general payments to Dr. Freeman from 7 companies from 2022 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Douglas J. Freeman been practicing?
Dr. Freeman graduated from medical school in 1995, 31 years ago.
Does Dr. Douglas J. Freeman do research?
Dmand AI links 1 publication to Dr. Freeman.
What insurance does Dr. Douglas J. Freeman accept?
Dr. Freeman is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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