DR. DOUGLAS FREEMAN M.D.
NPI 1588760110
Family Medicine in Fairfield, CA

Q: What is Douglas Freeman's NPI number?

The NPI number for Douglas Freeman is 1588760110. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Q: What is Douglas Freeman's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Douglas Freeman was last updated on May 17, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since September 14, 2006PECOS EnrolledAccepts Medicare Assignment

2458 HILBORN RD, FAIRFIELD, CA 94534(707) 646-5500(707) 646-5501 Get Directions Write a Review

NPPES record last updated: May 17, 2010. Verified against the NPPES registry weekly; last sync: July 19, 2026.

On this page

About Dr. Douglas Freeman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DOUGLAS FREEMAN M.D. (NPI 1588760110) is an individual family medicine provider in Fairfield, California, licensed in California (C 51473) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (1995).

NPPES Registry Identity

NPI1588760110

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. DOUGLAS FREEMANCredential: M.D.

Location Address2458 HILBORN RDFairfield, CA 94534-1072

Mailing Address2458 Hilborn RdFairfield, CA 94534-1072 · (707) 646-5500 · Fax (707) 646-5501

Phone(707) 646-5500

Fax(707) 646-5501

Sole ProprietorYes

Medical School CMSSaint Louis University School Of MedicineGraduated 1995

Enumeration DateSeptember 14, 2006

Last NPPES UpdateMay 17, 2010

✔ NPI 1588760110 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · C 51473

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

2458 HILBORN RD, Fairfield, CA 94534

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Other Identifiers 2

OtherC51473CA · Medical License

Medicare UPINH72503CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Douglas Freeman M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4587654157

PECOS Enrollment IDI20040514001225

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 22

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit, 30-39 minutes 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

855 services427 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

267 services267 patients

Annual depression screening, 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

250 services250 patients

Follow-up nursing facility visit per day, typically 25 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

135 services34 patients

Established patient office or other outpatient visit, 20-29 minutes 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

127 services111 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

89 services88 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

87 services84 patients

Alcohol and/or substance (other than tobacco) misuse structured assessment (e.g., audit, dast), and brief intervention 15 to 30 minutes G0396

This service involves a structured evaluation of your alcohol or substance use habits. It identifies potential issues and provides brief counseling to help modify harmful behaviors. It's a short, 15-30 minute process, focused on promoting healthier choices.

67 services67 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

58 services58 patients

New patient office or other outpatient visit, 45-59 minutes 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

56 services56 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

49 services48 patients

Initial nursing facility visit per day, typically 45 minutes 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

45 services37 patients

Transitional care management services for problem of moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

43 services38 patients

Nursing facility discharge management, more than 30 minutes 99316

Nursing facility discharge management over 30 minutes is a comprehensive process where a healthcare team prepares you for leaving the facility. It involves creating a tailored plan, coordinating care, and ensuring a smooth transition to your next care setting.

41 services32 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

38 services38 patients

Pneumococcal vaccine, 23-valent 90732

The 23-valent pneumococcal vaccine is an injection that helps protect against serious infections caused by 23 types of pneumococcal bacteria. It's vital for those at risk, like older adults or people with certain health conditions, to prevent pneumonia, meningitis, and bloodstream infections.

35 services35 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

26 services26 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

21 services15 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

15 services11 patients

Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment G0402

An Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.

15 services15 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

13 services13 patients

Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage 90686

The quadrivalent influenza vaccine is a shot to protect you from four different flu viruses. It's preservative-free and given in a 0.5 ml dose. It helps your body build immunity to the flu, reducing your risk of getting sick.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94534 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$98.85 typical visit price

range $65.02 – $191.95

Typical copayment $24.71 (range $16.25 – $47.98)

Most-billed visit code 99203

Established Patient

$113.05 typical visit price

range $21.86 – $157.69

Typical copayment $28.26 (range $5.46 – $39.42)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 24

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

9 suppliers29 claims55 services$5.82 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

7 suppliers17 claims20 services$1.06 avg. paid by Medicare

Ostomy skin barrier, powder, per oz A4371

DME-Orthotic Devices · category DF010N

2 suppliers11 claims24 services$3.47 avg. paid by Medicare

Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce A4394

DME-Orthotic Devices · category DF010N

1 supplier13 claims300 services$2.50 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each A4409

DME-Orthotic Devices · category DF010N

2 suppliers13 claims420 services$5.99 avg. paid by Medicare

Ostomy pouch, drainable; for use on barrier with non-locking flange, with filter (2 piece system), each A4425

DME-Orthotic Devices · category DF010N

2 suppliers13 claims420 services$3.45 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

8 suppliers43 claims43 services$36.24 avg. paid by Medicare

Ostomy pouch, closed; for use on barrier with flange (2 piece), each A5054

DME-Orthotic Devices · category DF010N

1 supplier12 claims360 services$1.74 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

7 suppliers22 claims22 services$76.35 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

7 suppliers23 claims61 services$31.47 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

3 suppliers22 claims123 services$19.10 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

4 suppliers36 claims36 services$57.06 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

7 suppliers33 claims33 services$18.38 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

2 suppliers13 claims13 services$12.49 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

8 suppliers54 claims290 services$2.19 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

6 suppliers19 claims19 services$10.94 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

4 suppliers36 claims36 services$49.32 avg. paid by Medicare

Stationary compressed gaseous oxygen system, rental; includes container, contents, regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing E0424

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$84.92 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

4 suppliers73 claims73 services$35.03 avg. paid by Medicare

Transport chair, adult size, patient weight capacity up to and including 300 pounds E1038

DME-Other DME · category DE000N

1 supplier11 claims11 services$10.06 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers19 claims19 services$84.09 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

3 suppliers34 claims35 services$20.46 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

1 supplier81 claims81 services$194.73 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier18 claims18 services$34.24 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DINESH NAGAR M.D.

Internal Medicine

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 646-5550

DR. MICHELLE GALI CHURCH M.D.

Pediatrics (Adolescent Medicine)

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 399-1000

DR. MICHAEL LANE GINSBERG MD

Pediatrics (Adolescent Medicine)

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 646-5500

DR. JUDY YANG D.O.

Pediatrics

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 646-5000

AMANDA CATRICE ADKINS M.D.

Internal Medicine

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 646-5500

LEVON TCHAKMAKJIAN M.D.

Internal Medicine

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 646-5500

DR. KALSANG DOLKER DORJI DNP, FNP-BC

Nurse Practitioner (Family)

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 646-5500

NGUYEN NGUYEN

Family Medicine

2458 HILBORN RD
FAIRFIELD, CA 94534

Solano County (707) 646-5500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Douglas Freeman's NPI number?

The NPI number for Douglas Freeman is 1588760110. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Where is Douglas Freeman located?

Douglas Freeman practices at 2458 Hilborn Rd, Fairfield, CA 94534. The listed phone number is (707) 646-5500.

What is Douglas Freeman's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Douglas Freeman enrolled in Medicare?

Yes. Douglas Freeman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Douglas Freeman was last updated on May 17, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.