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MR. SCOTT GERALD AHL D.O.
NPI 1558674523
Internal Medicine - Endocrinology, Diabetes & Metabolism in Huntington Beach, CA

Active since July 20, 2010PECOS EnrolledAccepts Medicare Assignment
84.41/100
CMS Quality Rating
19582 BEACH BLVD, HUNTINGTON BEACH, CA 92648(949) 791-3205(714) 477-8024 Get Directions Write a Review

NPPES record last updated: May 29, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: May 29, 2026, Jul 1, 2025, Aug 2, 2021 (3 updates tracked since 2021).

About Mr. Scott Gerald Ahl D.o. NPPES

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

MR. SCOTT GERALD AHL D.O. (NPI 1558674523) is an individual endocrinology, diabetes & metabolism provider in Huntington Beach, California, licensed in California (20A-12063) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2010).

NPPES Registry Identity

NPI1558674523
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameMR. SCOTT GERALD AHLCredential: D.O.
Location Address19582 BEACH BLVDHuntington Beach, CA 92648-5994
Mailing Address19582 Beach BlvdHuntington Beach, CA 92648-5994 · (714) 477-8020
Phone(949) 791-3205
Fax(714) 477-8024
Sole ProprietorNo
Medical School CMSArizona College Of Osteopathic Medicine Mid Western UniversityGraduated 2010
Enumeration DateJuly 20, 2010
Last NPPES UpdateMay 29, 20263 updates tracked since enumeration
NPPES CertifiedMay 29, 2026
✔ NPI 1558674523 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 · 20A-12063
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.
19582 BEACH BLVD, Huntington Beach, CA 92648
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 and accepts Medicare assignment

Mr. Scott Gerald Ahl D.o. 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 ID9032426481
PECOS Enrollment IDI20150916003199
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 Scott Ahl reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hoag Clinic
4.8 mi
Primary Care
510 SUPERIOR AVE
Newport Beach, CA 92663
  • Reassigned Medicare billing, California enrollment
  • 529 clinicians in this Medicare group
NPI 1942799523 (949) 791-3001

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

Areas of Expertise CMS Part B claims 7

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.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
2,220 services21 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 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.
338 services201 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 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.
93 services93 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.
73 services27 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
58 services57 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 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.
42 services38 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92648 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

84.41/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality90.67
Promoting Interoperability100
Improvement Activities40
Cost57.36

Referred Medical Equipment & Supplies CMS DME claims 2

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
6 suppliers12 claims33 services$4.99 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
5 suppliers60 claims62 services$189.35 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.

THE CANCER TREATMENT CENTER OF ORANGE COUNTY MEDICAL GROUP INC
Internal Medicine (Hematology & Oncology)
19582 BEACH BLVD, SUITE 270
HUNTINGTON BEACH, CA 92648
Orange County (714) 378-4920
DR. AN DUY NGUYEN M.D.
Internal Medicine (Hematology & Oncology)
19582 BEACH BLVD, STE 212
HUNTINGTON BEACH, CA 92648
Orange County (714) 252-9415
PUNDARI K CHEMITIGANTI M.D.
Internal Medicine (Gastroenterology)
19582 BEACH BLVD, STE 102
HUNTINGTON BEACH, CA 92648
Orange County (714) 843-6789
CHRISTOPHER JOHNSTON DPT
Physical Therapist
19582 BEACH BLVD, SUITE 130
HUNTINGTON BEACH, CA 92648
Orange County (714) 841-6162
CHRISTINE T THAI M.D.
Internal Medicine (Rheumatology)
19582 BEACH BLVD, STE 320
HUNTINGTON BEACH, CA 92648
Orange County (714) 378-2440
PUNDARI C GANTI M D INC
Internal Medicine (Gastroenterology)
19582 BEACH BLVD, STE. # 102
HUNTINGTON BEACH, CA 92648
Orange County (714) 843-6789
HUNTINGTON BEACH PHYSICAL THERAPY SPECIALIST A PROFESSIONAL CORP
Physical Therapist
19582 BEACH BLVD, SUITE 130
HUNTINGTON BEACH, CA 92648
Orange County (714) 841-6162
ADVANCED DERMATOLOGY CARE CENTER INC
Dermatology
19582 BEACH BLVD, SUITE 217
HUNTINGTON BEACH, CA 92648
Orange County (949) 650-1244

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 Scott Ahl's NPI number?

The NPI number for Scott Ahl is 1558674523. It was assigned to this individual provider in the NPPES registry on July 20, 2010.

Where is Scott Ahl located?

Scott Ahl practices at 19582 Beach Blvd, Huntington Beach, CA 92648. The listed phone number is (949) 791-3205.

What is Scott Ahl's specialty?

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

Is Scott Ahl enrolled in Medicare?

Yes. Scott Ahl 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.

Which organization bills Medicare for Scott Ahl's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Scott Ahl reassigns Medicare benefits to Hoag Clinic (Newport Beach, 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 Scott Ahl'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 Scott Ahl was last updated on May 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.