Active NPI 1386885614 Individual Practitioner Male Practitioner

Dr. Billy A De Los Santos , MD

Internal Medicine • Sunnyvale, TX

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Billy De Los Santos, MD is a certified Internal Medicine practicing in Sunnyvale, TX. With approximately 19 years of clinical experience since completing medical education in 2007, Dr. De Los Santos delivers high-quality medical care to the local community at 341 WHEATFIELD DR STE 100.

Dr. De Los Santos is affiliated with Wellmed Medical Group Pa 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, insertion of needle into vein for collection of blood sample, administration of influenza virus vaccine. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

341 Wheatfield Dr Ste 100

Sunnyvale, TX 751824639

Telephone 9722850221

Fax 9722850223

Associated Practice Facility / Clinic

🏢 John Pang, D.o., P.a. Facility NPI 1518086495

Medicare Profile & Education

Medical School

Other

Graduation Year

2007

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Sunnyvale, TX

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

19 Yrs -6.6 yrs vs City Avg

City Avg: 25.6 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

8 Specialists

Practicing in Sunnyvale, TX (9538 Statewide)

Telehealth Adoption Rate

12.5% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

29.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. De Los Santos (19 Years) 19 Yrs

Sunnyvale Specialty Average (25.6 Years) 25.6 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	96	49	$184.25	$126.69
36415 Insertion of needle into vein for collection of blood sample	48	24	$13.85	$8.65
G0008 Administration of influenza virus vaccine	16	16	$46.00	$32.05
90653 Vaccine for influenza for injection into muscle	15	15	$106.00	$81.82
99213 Established patient office or other outpatient visit, typically 15 minutes	14	14	$131.00	$90.00

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	85	52	$187.33	$126.30
36415 Insertion of needle into vein for collection of blood sample	49	25	$12.02	$7.97
G0008 Administration of influenza virus vaccine	19	19	$46.00	$29.51
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	18	18	$108.00	$75.50

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	138	69	$189.13	$129.09
36415 Insertion of needle into vein for collection of blood sample	72	47	$5.01	$2.96
G0008 Administration of influenza virus vaccine	25	24	$42.48	$28.11
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	19	19	$100.00	$70.25

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	256	94	$184.84	$131.95
36415 Insertion of needle into vein for collection of blood sample	92	60	$5.01	$3.00
J1100 Injection, dexamethasone sodium phosphate, 1 mg	45	11	$0.35	$0.14
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	27	27	$44.00	$28.83
G0008 Administration of influenza virus vaccine	26	26	$25.00	$16.47
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	19	14	$21.00	$13.83
99213 Established patient office or other outpatient visit, typically 15 minutes	13	12	$130.31	$88.77

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	264	117	$275.33	$111.42
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	126	31	$127.00	$42.43
36415 Insertion of needle into vein for collection of blood sample	56	56	$5.01	$3.00
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes	33	12	$156.00	$51.90
99213 Established patient office or other outpatient visit, typically 15 minutes	28	23	$195.71	$76.73
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	23	23	$355.00	$112.47
87804 Detection test by immunoassay with direct visual observation for influenza virus	21	11	$50.00	$16.33
G0506 Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service)	17	17	$192.00	$63.68
99453 Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment	17	17	$57.00	$18.91
G0008 Administration of influenza virus vaccine	14	14	$45.71	$16.37
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	13	13	$38.69	$14.63

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	302	134	$330.00	$110.32
J1100 Injection, dexamethasone sodium phosphate, 1 mg	89	15	$1.00	$0.11
G0008 Administration of influenza virus vaccine	49	49	$78.00	$16.73
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	36	26	$445.00	$148.04
90662 Influenza vaccine split virus, preservative free	36	36	$148.00	$54.60
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	34	24	$64.00	$17.03
99213 Established patient office or other outpatient visit, typically 15 minutes	25	20	$224.00	$75.53
81003 Automated urinalysis test	21	17	$9.00	$2.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$503.00	$166.85
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	13	13	$57.00	$18.65

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	268	117	$330.00	$107.62
J1100 Injection, dexamethasone sodium phosphate, 1 mg	168	19	$1.00	$0.11
36415 Insertion of needle into vein for collection of blood sample	161	106	$9.00	$2.92
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	81	45	$444.96	$146.10
G0008 Administration of influenza virus vaccine	59	56	$78.00	$20.30
90662 Influenza vaccine split virus, preservative free	48	47	$148.00	$51.12
G0009 Administration of pneumococcal vaccine	45	45	$78.00	$20.65
99213 Established patient office or other outpatient visit, typically 15 minutes	41	30	$224.00	$73.52
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	40	28	$64.38	$20.24
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	36	36	$324.00	$102.66
87804 Detection test by immunoassay with direct visual observation for influenza virus	26	11	$49.92	$16.22
81003 Automated urinalysis test	19	12	$9.05	$2.71
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$502.77	$166.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	316	132	$9.00	$2.93
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	287	116	$328.90	$108.00
99213 Established patient office or other outpatient visit, typically 15 minutes	85	56	$222.93	$73.48
G0008 Administration of influenza virus vaccine	75	73	$77.97	$25.56
90662 Influenza vaccine split virus, preservative free	72	70	$127.21	$47.71
G0009 Administration of pneumococcal vaccine	70	69	$77.96	$25.56
90670 Pneumococcal vaccine for injection into muscle	59	59	$544.00	$183.98
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	40	34	$78.75	$25.77
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	38	29	$442.00	$144.82
J1100 Injection, dexamethasone sodium phosphate, 1 mg	29	24	$1.00	$0.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$500.00	$164.55
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	17	17	$270.00	$96.87
81003 Automated urinalysis test	13	13	$10.00	$3.02

Medical Specialties & State Licenses

CMS Verified: 2021-06-09

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License TX P0899

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License NY 262040

Hospital & Practice Group Affiliations

Wellmed Medical Group Pa

341 Wheatfield Dr, Sunnyvale, TX 751829303

Phone: 9722850221

Practice Associates & Co-Workers

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

7 Associated Practitioners

Julyana Yamassaki-Davidson , FNP-C

Nurse Practitioner - Family

NPI 1164137691

Family Nurse Practitioner (Certified)

Dr. Lindsay Yarbrough , DO

Family Medicine

NPI 1184935199

Doctor of Osteopathic Medicine (D.O.)

Sarah Ouimet , PA-C

Physician Assistant

NPI 1487388203

Physician Assistant (Certified)

Sarah Moore , AGNP

Nurse Practitioner

NPI 1649401266

Adult-Gerontology Nurse Practitioner

Daniel Barrios , NP

Nurse Practitioner - Primary Care

NPI 1770993818

Nurse Practitioner

Dr. Ankoor Kambhampaty , MD

Family Medicine

NPI 1811427222

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

12 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 09, 2021

Internal Medicine (License #262040 in NY)

📍

Updated Practice Location April 27, 2021

Registered at 341 WHEATFIELD DR STE 100, SUNNYVALE, TX 751824639 (Tel: 9722850221)

📍

Updated Business Mailing Address April 27, 2021

Registered at 341 WHEATFIELD DR STE 100, SUNNYVALE, TX 751824639 (Tel: 9722850221)

📍

Updated Practice Location April 08, 2021

Registered at 925 N BRYAN BELT LINE RD STE 100, MESQUITE, TX 751492541 (Tel: 9722856349)

📍

Updated Business Mailing Address April 08, 2021

Registered at 925 N BRYAN BELT LINE RD STE 100, MESQUITE, TX 751492541 (Tel: 9722856349)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 08, 2021

Internal Medicine (License #P0899 in TX)

✅

NPI Profile Active February 04, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location February 04, 2015

Registered at 820 E CARTWRIGHT RD, SUITE 100, MESQUITE, TX 751496000 (Tel: 2143207600)

📍

Updated Business Mailing Address February 04, 2015

Registered at 820 W CARTWRIGHT RD, SUITE 100, MESQUITE, TX 75149 (Tel: 2143207600)

👤

Provider Name / Credentials Updated February 04, 2015

Recorded as BILLY DE LOS SANTOS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 04, 2015

Internal Medicine (License #P0899 in TX)

🟢

Initial NPI Registration & Enumeration March 17, 2009

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Billy De Los Santos. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1386885614

Entity Type:

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

Enumeration Date: March 17, 2009

Last Update: June 09, 2021

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

341 Wheatfield Dr Ste 100

Sunnyvale, TX 751824639

Phone: 9722850221

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.