Active NPI 1437128279 Individual Practitioner Male Practitioner

Dr. Stephen Alexander Ash , MD

General Practice • Glendale, AZ

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Stephen Ash, MD is a certified General Practice practicing in Glendale, AZ. With approximately 43 years of clinical experience since graduating from University Of Louisville School Of Medicine in 1983, Dr. Ash delivers high-quality medical care to the local community at 5410 W THUNDERBIRD.

Dr. Ash is affiliated with Nextcare Arizona I Jv Llc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, detection test by immunoassay with direct visual observation for influenza virus. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

5410 W Thunderbird
Ste 101

Glendale, AZ 853064711

Telephone 6025306189

Fax 6025482292

Associated Practice Facility / Clinic

🏢 Auc Investor's Group Llc Facility NPI 1871590505

Medicare Profile & Education

Medical School

University Of Louisville School Of Medicine

Graduation Year

1983

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in Glendale, AZ

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

43 Yrs +2.0 yrs vs City Avg

City Avg: 41.0 Yrs

State Avg: 21.3 Yrs

Regional Practice Density

14 Specialists

Practicing in Glendale, AZ (259 Statewide)

Telehealth Adoption Rate

14.3% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

70.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ash (43 Years) 43 Yrs

Glendale Specialty Average (41.0 Years) 41.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	27	27	$313.89	$85.06
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$326.33	$105.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	200	184	$185.00	$87.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	134	134	$205.00	$108.92
87804 Detection test by immunoassay with direct visual observation for influenza virus	58	29	$55.00	$16.22
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	42	42	$75.00	$34.62
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$300.00	$160.71
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	27	27	$50.00	$16.20
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)	23	23	$75.00	$40.55
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	17	$195.00	$121.82
90471 Administration of 1 vaccine	13	13	$35.00	$19.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	280	248	$185.00	$88.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	260	260	$205.00	$109.20
87804 Detection test by immunoassay with direct visual observation for influenza virus	182	88	$55.00	$16.36
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	147	141	$75.00	$34.91
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	61	61	$300.00	$163.47
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	48	46	$195.00	$125.04
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	41	39	$50.00	$16.35
93000 Routine ekg using at least 12 leads including interpretation and report	16	16	$75.00	$13.91
90471 Administration of 1 vaccine	13	13	$35.00	$16.21
90714 Vaccine for tetanus and diphtheria toxoids injection into muscle, patient 7 years or older	12	12	$42.00	$27.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	226	198	$165.53	$89.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	205	205	$194.98	$110.42
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc	131	128	$75.00	$51.31
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	50	48	$195.00	$125.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	40	40	$300.00	$165.29
99202 New patient office or other outpatient visit, typically 20 minutes	38	38	$162.63	$71.64
87804 Detection test by immunoassay with direct visual observation for influenza virus	36	18	$55.00	$16.55
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	25	$162.88	$55.12
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	24	24	$50.00	$16.53
90471 Administration of 1 vaccine	14	14	$35.00	$16.52
93000 Routine ekg using at least 12 leads including interpretation and report	14	14	$75.00	$14.49
90714 Vaccine for tetanus and diphtheria toxoids injection into muscle, patient 7 years or older	14	14	$42.00	$26.11
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	12	12	$75.00	$35.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	284	284	$190.00	$106.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	181	170	$195.00	$106.49
99213 Established patient office or other outpatient visit, typically 15 minutes	127	116	$160.00	$74.08
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc	72	71	$75.00	$51.25
71046 X-ray of chest, 2 views	39	38	$100.00	$31.82
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	21	21	$50.00	$16.40
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$300.00	$162.91
90714 Vaccine for tetanus and diphtheria toxoids injection into muscle, patient 7 years or older	17	17	$42.00	$26.08
90471 Administration of 1 vaccine	16	16	$35.00	$14.01
93000 Routine ekg using at least 12 leads including interpretation and report	14	14	$75.00	$16.70
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	11	11	$85.00	$13.97
81003 Automated urinalysis test	11	11	$20.00	$2.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	252	235	$195.00	$104.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	159	159	$190.00	$104.04
99213 Established patient office or other outpatient visit, typically 15 minutes	88	84	$160.00	$70.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$300.00	$158.55
71046 X-ray of chest, 2 views	27	27	$100.00	$29.88
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	17	17	$85.00	$15.99
90471 Administration of 1 vaccine	16	16	$35.00	$15.95
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	15	15	$50.00	$16.20
90714 Vaccine for tetanus and diphtheria toxoids injection into muscle, patient 7 years or older	14	14	$42.00	$23.34
93000 Routine ekg using at least 12 leads including interpretation and report	14	14	$75.00	$16.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	261	245	$177.28	$99.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	256	256	$178.05	$99.69
99213 Established patient office or other outpatient visit, typically 15 minutes	110	104	$160.00	$66.75
81003 Automated urinalysis test	70	70	$20.00	$2.71
71046 X-ray of chest, 2 views	43	43	$100.00	$27.95
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	31	31	$47.58	$16.20
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	19	19	$60.37	$18.81
90714 Vaccine for tetanus and diphtheria toxoids injection into muscle, patient 7 years or older	17	17	$42.00	$24.14
90471 Administration of 1 vaccine	16	16	$32.19	$18.89
94640 Inhalation treatment for airway obstruction or sputum production	16	16	$56.00	$17.08
93000 Routine ekg using at least 12 leads including interpretation and report	15	15	$75.00	$15.54
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$291.43	$150.97
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	14	14	$15.21	$6.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	294	253	$170.00	$97.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	241	241	$170.00	$98.39
81003 Automated urinalysis test	90	83	$20.00	$3.02
99213 Established patient office or other outpatient visit, typically 15 minutes	53	52	$160.00	$65.67
71020 X-ray of chest, 2 views, front and side	35	35	$141.00	$25.38
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	33	33	$45.00	$16.11
90714 Vaccine for tetanus and diphtheria toxoids injection into muscle, patient 7 years or older	29	28	$42.00	$22.01
90471 Administration of 1 vaccine	29	28	$30.00	$23.10
87804 Detection test by immunoassay with direct visual observation for influenza virus	27	14	$55.00	$16.11
93000 Routine ekg using at least 12 leads including interpretation and report	23	23	$75.00	$15.37
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	15	14	$49.00	$23.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$260.00	$149.88

Medical Specialties & State Licenses

General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License AZ 15494

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Arizona Medical Board

15494 (AZ)

Hospital & Practice Group Affiliations

Nextcare Arizona I Jv Llc

914 N Scottsdale Rd, Tempe, AZ 852882116

Phone: 4809248382

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

10 Associated Practitioners

Dr. Dov Levine , DO

Family Medicine

NPI 1124002084

Doctor of Osteopathic Medicine (D.O.)

Rudy Noriega , PA-C

Physician Assistant

NPI 1184647927

Physician Assistant (Certified)

Karen Watts , PA-C

Physician Assistant - Medical

NPI 1306845896

Physician Assistant (Certified)

Dr. Scott Bingham , DO

Emergency Medicine

NPI 1326018359

Doctor of Osteopathic Medicine (D.O.)

Gary Gawelko , PA-C

Physician Assistant - Medical

NPI 1346577244

Physician Assistant (Certified)

Tara Moore , FNP

Nurse Practitioner - Family

NPI 1376322073

Family Nurse Practitioner

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 5410 W THUNDERBIRD, STE 101, GLENDALE, AZ 853064711 (Tel: 6025306189)

📍

Updated Business Mailing Address July 08, 2007

Registered at 5410 W THUNDERBIRD RD, STE 101, GLENDALE, AZ 853064711 (Tel: 6025306189)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as STEPHEN ASH, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

General Practice (License #15494 in AZ)

🟢

Initial NPI Registration & Enumeration March 15, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1437128279

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: March 15, 2006

Last Update: July 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

5410 W Thunderbird Rd, Ste 101

Glendale, AZ 853064711

Phone: 6025306189

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.