DENZIL DOUGLAS M.D.
NPI 1699161075
Internal Medicine - Nephrology in Fairfield, CT

Active since April 13, 2015PECOS EnrolledAccepts Medicare Assignment
97.04/100
CMS Quality Rating
501 KINGS HWY E STE 109, FAIRFIELD, CT 06825(203) 330-0248 Get Directions Write a Review

NPPES record last updated: March 9, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 9, 2026, Nov 7, 2022, Feb 9, 2021 (3 updates tracked since 2021).

About Denzil Douglas M.d. NPPES

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

DENZIL DOUGLAS M.D. (NPI 1699161075) is an individual nephrology provider in Fairfield, Connecticut, licensed in New York (301732) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Columbia University College Of Physicians And Surgeons (2015).

NPPES Registry Identity

NPI1699161075
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDENZIL DOUGLASCredential: M.D.
Location Address501 KINGS HWY E STE 109Fairfield, CT 06825-4871
Mailing AddressPo Box 416173Boston, MA 02241-6173 · (610) 644-8900 · Fax (484) 924-0053
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2015
Enumeration DateApril 13, 2015
Last NPPES UpdateMarch 9, 20263 updates tracked since enumeration
NPPES CertifiedMarch 9, 2026
NPI 1699161075 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in NY · 301732
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License 301732 (NY)
501 KINGS HWY E STE 109, Fairfield, CT 06825

Secondary Practice Locations 2

Location 1577 Prospect AveBrooklyn, NY 11215-6065 · Phone (718) 369-1444
Location 2622 W 168th St # 205New York, NY 10032-3720 · Phone (212) 305-6354 · Fax (212) 305-6279

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

Denzil Douglas 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 ID2264779776
PECOS Enrollment IDI20210301002532, I20221206000946
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 23

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967
Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.
16,952 services235 patients
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152
This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.
270 services194 patients
Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist 36902
This procedure involves inserting a needle or tube into your hemodialysis circuit, a system that cleans your blood when your kidneys can't. A balloon is then used to widen a narrow section of this circuit. A radiologist reviews the procedure to ensure accuracy.
191 services156 patients
Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel 37253
An ultrasound evaluation of a blood vessel is a non-invasive procedure that uses sound waves to create images of your blood vessels. A radiologist reviews these images to check for any abnormalities. If additional vessels need reviewing, the process is repeated.
112 services90 patients
Ultrasound evaluation of blood vessel with review by radiologist, initial vessel 37252
This procedure involves using ultrasound, a safe imaging technique, to examine your blood vessels. The images are then reviewed by a radiologist, a doctor specialized in medical imaging. The process helps identify any abnormalities in your initial vessel.
107 services91 patients
Balloon dilation of dialysis segment with review by radiologist 36907
Balloon dilation of a dialysis segment is a procedure where a tiny balloon is inserted and inflated in a narrowed area of your dialysis access site, improving blood flow. A radiologist reviews images to ensure success.
94 services76 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06825 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.09
Improvement Activities40

Other Providers at the Same Location NPPES

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

Radiology (Vascular & Interventional Radiology)
501 KINGS HWY E STE 109
FAIRFIELD, CT 06825

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 Denzil Douglas's NPI number?

The NPI number for Denzil Douglas is 1699161075. It was assigned to this individual provider in the NPPES registry on April 13, 2015.

Where is Denzil Douglas located?

Denzil Douglas practices at 501 Kings Hwy E Ste 109, Fairfield, CT 06825. The listed phone number is (203) 330-0248.

What is Denzil Douglas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Denzil Douglas enrolled in Medicare?

Yes. Denzil Douglas 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 Denzil Douglas was last updated on March 9, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.