DR. WILLIAM LARRY DAVIDSON II MD
NPI 1578583191
Allergy & Immunology in Daphne, AL

Q: What is William Davidson's NPI number?

The NPI number for William Davidson is 1578583191. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Q: What is William Davidson's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for William Davidson was last updated on June 28, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.

Active since July 19, 2006PECOS EnrolledAccepts Medicare Assignment

69.52/100

CMS Quality Rating

8725 COUNTY ROAD 64, DAPHNE, AL 36526(251) 625-1370(251) 625-1380 Get Directions Write a Review

NPPES record last updated: June 28, 2019. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Oct 2, 2018, May 25, 2018, Mar 17, 2018 and 1 more (4 updates tracked since 2018).

On this page

About Dr. William Larry Davidson Ii Md NPPES

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

DR. WILLIAM LARRY DAVIDSON II MD (NPI 1578583191) is an individual allergy & immunology provider in Daphne, Alabama, licensed in Alabama (27233) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of University Of South Alabama College Of Medicine (2001).

NPPES Registry Identity

NPI1578583191

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameDR. WILLIAM LARRY DAVIDSON IICredential: MD

Location Address8725 COUNTY ROAD 64Daphne, AL 36526

Mailing AddressPo Box 7987Mobile, AL 36670-0987 · (251) 633-0573 · Fax (251) 633-7367

Phone(251) 625-1370

Fax(251) 625-1380

Sole ProprietorNo

Medical School CMSUniversity Of South Alabama College Of MedicineGraduated 2001

Enumeration DateJuly 19, 2006

Last NPPES UpdateJune 28, 20194 updates tracked since enumeration

✔ NPI 1578583191 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in AL · 27233

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedInternal Medicine · Allergy & ImmunologyTaxonomy 207RA0201X · License 27233 (AL)

8725 COUNTY ROAD 64, Daphne, AL 36526

Open in Google Maps ↗

Secondary Practice Locations 3

Location 12001 Spring Hill AveMobile, AL 36607-3326 · Phone (251) 433-3344 · Fax (251) 433-4052

Location 25955 Airport BlvdMobile, AL 36608-3135 · Phone (251) 633-0573 · Fax (251) 633-7367

Location 3100 Memorial Hospital Dr Ste 1AMobile, AL 36608-1128 · Phone (251) 343-6848 · Fax (251) 343-5708

Other Identifiers 17

Medicaid212916AL

Medicaid221413AL

Other512-05653AL · Bcbs

Other7492847AL · Aetna

Other051558976AL · Medicare

Other512-05654AL · Bcbs

Other515-41041AL · Bcbs

OtherP00632093AL · Rr Medicare

Other1267986AL · Cigna Hc

Other2640282AL · Uhc

Medicaid220933AL

Other02277060MS · Ms Medicaid

Medicaid213237AL

Other511-95114AL · Bcbs

Other515-91801AL · Bcbs

Medicaid9998923AL

OtherI151192AL · Viva Health

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Magnolia Health, Ambetter Health, Ambetter of Alabama and more.Insurance ›

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. William Larry Davidson Ii Md 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 ID3173532793

PECOS Enrollment IDI20060410000656

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 14

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.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

1,828 services41 patients

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

1,437 services14 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.

245 services137 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

213 services13 patients

Evaluation of use of breathing device 94664

The evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.

110 services67 patients

Test to measure largest amount of air breathed in an out 94200

This test, called spirometry, measures your lung capacity. It involves taking a deep breath and then exhaling as forcefully as possible into a machine. The results help assess how well your lungs function.

95 services69 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

95 services69 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.

77 services77 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

69 services54 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.

50 services32 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.

42 services20 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

40 services39 patients

Test to determine lung volumes using gas dilution or washout 94727

This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.

39 services32 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

30 services26 patients

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.

69.52/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

67.6

Improvement Activities

Cost

50.1

Referred Medical Equipment & Supplies CMS DME claims 9

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

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221

DME-Other DME · category DE017N

6 suppliers42 claims99 services$18.37 avg. paid by Medicare

Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222

DME-Medical/Surgical Supplies · category DA000N

2 suppliers22 claims46 services$35.84 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

3 suppliers54 claims55 services$5.71 avg. paid by Medicare

Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater E0779

DME-Other DME · category DE000N

1 supplier17 claims17 services$12.64 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

1 supplier12 claims12 services$91.55 avg. paid by Medicare

Injection, immune globulin (cuvitru), 100 mg J1555

Treatment-Injections and Infusions (nononcologic) · category RI008N

3 suppliers25 claims9,200 services$11.71 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 3

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

MR. DANIEL PHILLIP GARDNER FNP

Nurse Practitioner (Family)

8725 COUNTY ROAD 64
DAPHNE, AL 36526

Baldwin County (251) 625-1370

PULMONARY ASSOCIATES OF MOBILE PC

Allergy & Immunology

8725 COUNTY ROAD 64
DAPHNE, AL 36526

Baldwin County (251) 625-1370

DR. KAREN B BARKER M.D.

Allergy & Immunology

8725 COUNTY ROAD 64
DAPHNE, AL 36526

Baldwin County (251) 625-1370

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 William Davidson's NPI number?

The NPI number for William Davidson is 1578583191. It was assigned to this individual provider in the NPPES registry on July 19, 2006.

Where is William Davidson located?

William Davidson practices at 8725 County Road 64, Daphne, AL 36526. The listed phone number is (251) 625-1370.

What is William Davidson's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is William Davidson enrolled in Medicare?

Yes. William Davidson 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.

What insurance does William Davidson accept?

Health plans from Ambetter Health, Ambetter from Magnolia Health, Ambetter of Alabama, Ambetter of Tennessee and Blue Cross and Blue Shield of Alabama and 1 other insurer list William Davidson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Davidson was last updated on June 28, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.