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DR. ALAN BRUCE DOUGLASS M.D.
NPI 1811969991
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Diego, CA

Active since February 03, 2006PECOS Enrolled
34800 BOB WILSON DR, SAN DIEGO, CA 92134(619) 532-7375(619) 532-5472 Get Directions Write a Review

NPPES record last updated: May 9, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 9, 2025, Apr 30, 2024, May 25, 2022 and 1 more (4 updates tracked since 2021).

About Dr. Alan Bruce Douglass M.d. NPPES

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

DR. ALAN BRUCE DOUGLASS M.D. (NPI 1811969991) is an individual endocrinology, diabetes & metabolism provider in San Diego, California, licensed in California (G75547) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811969991
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. ALAN BRUCE DOUGLASSCredential: M.D.
Location Address34800 BOB WILSON DRSan Diego, CA 92134-1098
Mailing Address625 W. Citracado Parkway, Suite 108Escondido, CA 92025 · (760) 743-1431 · Fax (760) 743-6455
Phone(619) 532-7375
Fax(619) 532-5472
Sole ProprietorNo
Enumeration DateFebruary 3, 2006
Last NPPES UpdateMay 9, 20254 updates tracked since enumeration
NPPES CertifiedMay 9, 2025
✔ NPI 1811969991 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · G75547
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
34800 BOB WILSON DR, San Diego, CA 92134
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alan Bruce Douglass M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Alan Douglass reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North County Endocrine Medical Group
25 mi
Specialist
625 W CITRACADO PKWY, SUITE 108
Escondido, CA 92025
  • Reassigned Medicare billing, California enrollment
  • 14 clinicians in this Medicare group
NPI 1013068105 (760) 743-1431

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92134 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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 6

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
4 suppliers20 claims256 services$18.16 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
5 suppliers21 claims700 services$2.29 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
28 suppliers82 claims290 services$6.31 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
9 suppliers17 claims35 services$0.84 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
4 suppliers11 claims1,080 services$7.97 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
10 suppliers310 claims317 services$190.50 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 20

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

LORENA MARIE FUJII N.P.
Nurse Practitioner (Pediatrics)
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (619) 532-8910
JANELLE MARIE MARRA DO
Family Medicine
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (619) 532-6400
LAKIESHA NICOLE MURPHY
Nurse's Aide
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (619) 713-3385
SUSANNA BYRNE D.O.
Anesthesiology
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (619) 532-6400
DR. PAUL CHARLES CAMPBELL D.O.
Urology (Pediatric Urology)
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (619) 532-7200
PHILLIP EDWARD FRY JR. DO
Emergency Medicine
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (619) 532-6400
BRADLY JAMES STILLEY IDC
Military Health Care Provider (Independent Duty Corpsman)
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (360) 941-9989
DR. ELIZABETH WHIPPLE PHD
Military Health Care Provider
34800 BOB WILSON DR
SAN DIEGO, CA 92134
San Diego County (619) 532-6400

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 Alan Douglass's NPI number?

The NPI number for Alan Douglass is 1811969991. It was assigned to this individual provider in the NPPES registry on February 3, 2006.

Where is Alan Douglass located?

Alan Douglass practices at 34800 Bob Wilson Dr, San Diego, CA 92134. The listed phone number is (619) 532-7375.

What is Alan Douglass's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Alan Douglass enrolled in Medicare?

Yes. Alan Douglass is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alan Douglass's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alan Douglass reassigns Medicare benefits to North County Endocrine Medical Group (Escondido, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alan Douglass's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alan Douglass was last updated on May 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.