Active NPI 1366545675 Individual Practitioner Male Practitioner

Dr. Basem Abdeen , MD

Hospitalist • Houston, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Basem Abdeen, MD is a certified Hospitalist practicing in Houston, TX. With approximately 25 years of clinical experience since completing medical education in 2001, Dr. Abdeen delivers high-quality medical care to the local community at 6624 FANNIN ST FL 19.

Dr. Abdeen is affiliated with Kelsey-Seybold Medical Group, Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, follow-up hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

6624 Fannin St Fl 19

Houston, TX 770302312

Telephone 7134420000

Associated Practice Facility / Clinic

🏢 Kelsey-Seybold Medical Group, Pllc Facility NPI 1013915255

Medicare Profile & Education

Medical School

Other

Graduation Year

2001

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Hospitalist in Houston, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

25 Yrs +10.7 yrs vs City Avg

City Avg: 14.3 Yrs

State Avg: 19.2 Yrs

Regional Practice Density

362 Specialists

Practicing in Houston, TX (1587 Statewide)

Telehealth Adoption Rate

4.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

62.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Abdeen (25 Years) 25 Yrs

Houston Specialty Average (14.3 Years) 14.3 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	251	130	$212.84	$113.17
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	231	104	$167.62	$75.55
99239 Hospital discharge day management, more than 30 minutes	86	86	$232.56	$109.20
99231 Follow-up hospital inpatient care per day, typically 15 minutes	82	41	$71.30	$47.44
99497 Advance care planning, first 30 minutes	79	75	$207.00	$71.95
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	53	53	$667.85	$165.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	494	221	$321.84	$115.50
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	231	108	$130.77	$76.44
99239 Hospital discharge day management, more than 30 minutes	135	134	$341.76	$111.46
99497 Advance care planning, first 30 minutes	117	111	$207.00	$72.86
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	80	80	$574.50	$163.49
99231 Follow-up hospital inpatient care per day, typically 15 minutes	41	24	$69.78	$47.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	450	171	$288.96	$101.21
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	306	133	$290.34	$70.58
99239 Hospital discharge day management, more than 30 minutes	112	109	$355.99	$103.10
99497 Advance care planning, first 30 minutes	93	89	$172.22	$76.71
99231 Follow-up hospital inpatient care per day, typically 15 minutes	72	34	$178.04	$38.22
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	65	62	$469.15	$196.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	651	221	$226.71	$102.85
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	225	123	$391.63	$71.82
99239 Hospital discharge day management, more than 30 minutes	176	170	$340.48	$106.06
99497 Advance care planning, first 30 minutes	86	81	$168.63	$78.47
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	78	75	$621.71	$197.11
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	20	$728.54	$135.91
99220 Hospital observation care, typically 70 minutes	16	16	$767.66	$180.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	745	277	$212.36	$105.40
99497 Advance care planning, first 30 minutes	155	151	$164.00	$78.79
99239 Hospital discharge day management, more than 30 minutes	151	145	$216.00	$108.82
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	148	74	$145.00	$73.61
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	109	107	$455.28	$202.49
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	20	$276.00	$139.73
99407 Smoking and tobacco use intensive counseling, more than 10 minutes	20	20	$57.00	$26.52
99220 Hospital observation care, typically 70 minutes	19	19	$374.00	$187.45

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	549	196	$210.00	$104.17
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	515	172	$145.00	$72.77
99239 Hospital discharge day management, more than 30 minutes	206	197	$216.00	$106.64
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	110	109	$408.00	$201.20
99497 Advance care planning, first 30 minutes	109	103	$164.00	$79.24
99231 Follow-up hospital inpatient care per day, typically 15 minutes	35	18	$79.00	$39.50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	33	33	$276.00	$134.46
99220 Hospital observation care, typically 70 minutes	30	30	$374.00	$185.94
99217 Hospital observation care on day of discharge	11	11	$146.00	$73.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	572	217	$145.00	$71.92
99239 Hospital discharge day management, more than 30 minutes	162	155	$216.00	$106.21
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	155	96	$210.00	$103.59
99231 Follow-up hospital inpatient care per day, typically 15 minutes	111	54	$79.00	$39.02
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	91	90	$417.44	$201.56
99220 Hospital observation care, typically 70 minutes	34	34	$443.44	$185.03
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$276.00	$135.96
99219 Hospital observation care, typically 50 minutes	16	16	$273.00	$135.20
99221 Initial hospital inpatient care per day, typically 30 minutes	13	13	$238.08	$100.92
99217 Hospital observation care on day of discharge	12	12	$146.00	$72.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	482	213	$204.29	$71.19
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	256	100	$234.33	$103.14
99239 Hospital discharge day management, more than 30 minutes	142	138	$215.03	$105.37
99231 Follow-up hospital inpatient care per day, typically 15 minutes	138	58	$80.19	$38.84
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	51	51	$490.45	$200.35
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	39	38	$278.77	$135.36
99219 Hospital observation care, typically 50 minutes	25	25	$272.76	$129.93
99238 Hospital discharge day management, 30 minutes or less	23	23	$441.57	$71.46
99221 Initial hospital inpatient care per day, typically 30 minutes	21	21	$245.48	$100.46
99220 Hospital observation care, typically 70 minutes	19	19	$371.47	$175.48
99217 Hospital observation care on day of discharge	13	13	$193.00	$71.82

Medical Specialties & State Licenses

CMS Verified: 2026-02-19

Hospitalist Primary Specialty

NUCC Taxonomy Code: 208M00000X

State License TX T9614

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License TX T9614

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.

Hospital & Practice Group Affiliations

Kelsey-Seybold Medical Group, Pllc

6624 Fannin St, Houston, TX 770302312

Phone: 7134420000

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Khanh Nguyen , MD

Internal Medicine

NPI 1003803974

Doctor of Medicine (M.D.)

Dr. Joshua Leif , OD

Optometrist

NPI 1003888470

Doctor of Optometry

Dr. Melanie Mouzoon , MD

Pediatrics

NPI 1013003292

Doctor of Medicine (M.D.)

Dr. Maher Daas , MD

Internal Medicine - Pulmonary Disease

NPI 1013003391

Doctor of Medicine (M.D.)

Dr. Miguel Velez , MD

Physical Medicine & Rehabilitation

NPI 1013361591

Doctor of Medicine (M.D.)

Jimmy George , PA-C

Physician Assistant - Surgical

NPI 1013474337

Physician Assistant (Certified)

Career & Practice History Timeline

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

18 Historical Events

📍

Updated Practice Location February 19, 2026

Registered at 6624 FANNIN ST FL 19, HOUSTON, TX 770302312 (Tel: 7134420000)

📍

Updated Business Mailing Address February 19, 2026

Registered at 11511 SHADOW CREEK PKWY, HR/CREDENTIALING SERVICES, PEARLAND, TX 775847298 (Tel: 7134420000)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 19, 2026

Internal Medicine (License #T9614 in TX)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 27, 2025

Specialist (License #2007018065 in MO)

📍

Updated Business Mailing Address July 27, 2024

Registered at 11511 SHADOW CREEK PKWY, PEARLAND, TX 775847298 (Tel: 7134420000)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 27, 2024

Internal Medicine (License #T9614 in TX)

✅

NPI Profile Active March 15, 2017

NPI status registered as active in NPPES database

📍

Updated Business Mailing Address March 15, 2017

Registered at 10010 KENNERLY RD, 3 SOUTHBRIDGE, SAINT LOUIS, MO 631282106 (Tel: 3145251328)

📍

Updated Practice Location March 15, 2017

Registered at 10010 KENNERLY RD, 3 SOUTHBRIDGE, SAINT LOUIS, MO 631282106 (Tel: 3145251328)

👤

Provider Name / Credentials Updated March 15, 2017

Recorded as BASEM ABDEEN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 15, 2017

Specialist (License #2007018065 in MO)

👤

Provider Name / Credentials Updated March 09, 2017

Recorded as BASEM ABDEEN, MD

✅

NPI Profile Active June 24, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location June 24, 2016

Registered at 10010 KENNERLY RD, 3 SOUTHBRIDGE, SAINT LOUIS, MO 631282106 (Tel: 3145251328)

📍

Updated Business Mailing Address June 24, 2016

Registered at 9735 LANDMARK PARKWAY DR, STE 200, SAINT LOUIS, MO 631271646 (Tel: 3145251328)

👤

Provider Name / Credentials Updated June 24, 2016

Recorded as MOHAMMAD ABDEEN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 24, 2016

Specialist (License #2007018065 in MO)

🟢

Initial NPI Registration & Enumeration September 06, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1366545675

Entity Type:

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

Enumeration Date: September 06, 2006

Last Update: February 19, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

11511 Shadow Creek Pkwy, Hr/credentialing Services

Pearland, TX 775847298

Phone: 7134420000

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.