Active NPI 1578855680 Individual Practitioner Male Practitioner

Dr. John Manllo Dieck , MD

Internal Medicine • Mcallen, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Manllo Dieck, MD is a certified Internal Medicine practicing in Mcallen, TX. With approximately 17 years of clinical experience since completing medical education in 2009, Dr. Manllo Dieck delivers high-quality medical care to the local community at 1901 S 1ST ST STE 600.

Dr. Manllo Dieck maintains professional affiliations with Southern Texas Nephrology Pllc, South Texas Kidney Specialists, P.A. 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, dialysis services, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1901 S 1st St Ste 600

Mcallen, TX 785031228

Telephone 9566316136

Fax 9566311848

Associated Practice Facility / Clinic

🏢 South Texas Kidney Specialists, P.a. Facility NPI 1629195177

Medicare Profile & Education

Medical School

Other

Graduation Year

2009

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Mcallen, TX

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

17 Yrs -4.9 yrs vs City Avg

City Avg: 21.9 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

52 Specialists

Practicing in Mcallen, TX (9538 Statewide)

Telehealth Adoption Rate

19.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

19.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Manllo Dieck (17 Years) 17 Yrs

Mcallen Specialty Average (21.9 Years) 21.9 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
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	312	123	$121.00	$79.48
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	180	49	$390.00	$350.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	154	86	$146.00	$125.84
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	115	71	$150.00	$118.03
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	78	27	$325.00	$289.86
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	56	52	$240.00	$173.24
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	18	$195.00	$132.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$212.31	$166.95

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	469	181	$121.00	$77.27
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	260	76	$390.00	$340.87
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	146	81	$146.00	$101.15
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	141	104	$150.00	$116.26
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	62	60	$240.00	$169.63
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	52	34	$325.00	$280.85
99213 Established patient office or other outpatient visit, typically 15 minutes	30	24	$112.00	$81.95
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	21	$195.00	$127.00

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	503	176	$120.17	$69.29
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	275	89	$386.25	$352.00
99213 Established patient office or other outpatient visit, typically 15 minutes	166	113	$112.00	$88.74
90970 Dialysis services, per day, less than full month service (20 years or older)	130	12	$13.00	$9.46
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	99	77	$148.79	$99.55
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	95	54	$146.00	$124.57
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	74	41	$323.31	$292.10
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	39	39	$239.62	$192.35
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	34	34	$195.00	$131.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$154.73	$109.25

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	510	192	$120.69	$69.91
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	376	101	$388.88	$355.52
90970 Dialysis services, per day, less than full month service (20 years or older)	303	20	$13.00	$9.59
99213 Established patient office or other outpatient visit, typically 15 minutes	224	112	$112.00	$89.35
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	132	92	$323.86	$294.39
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	102	66	$148.82	$98.74
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	35	34	$193.71	$131.68
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	32	32	$239.06	$191.04
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$167.04	$110.39
90935 Hemodialysis procedure with physician evaluation	13	11	$153.00	$71.99

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	946	323	$121.00	$70.85
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	500	103	$390.00	$280.85
90970 Dialysis services, per day, less than full month service (20 years or older)	252	20	$13.00	$8.01
99213 Established patient office or other outpatient visit, typically 15 minutes	224	115	$112.00	$71.96
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	155	76	$325.00	$236.54
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	139	119	$150.00	$101.93
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	99	98	$195.00	$135.33
90935 Hemodialysis procedure with physician evaluation	67	42	$153.00	$72.49
99442 Telephone medical discussion with physician, 11-20 minutes	48	38	$40.00	$40.00
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	27	26	$240.00	$199.11
90962 Dialysis services, 1 physician visit per month (20 years or older)	17	13	$679.41	$183.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$162.00	$104.33

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	1,001	383	$121.00	$70.46
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	620	159	$390.00	$276.69
99213 Established patient office or other outpatient visit, typically 15 minutes	366	162	$112.00	$71.24
90970 Dialysis services, per day, less than full month service (20 years or older)	351	31	$13.00	$7.58
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	217	171	$150.00	$100.80
99231 Follow-up hospital inpatient care per day, typically 15 minutes	188	107	$95.00	$38.34
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	128	63	$325.00	$232.33
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	124	121	$195.00	$132.26
90935 Hemodialysis procedure with physician evaluation	93	61	$153.00	$71.74
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	51	49	$95.00	$43.36
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	31	31	$162.00	$103.96
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	19	19	$240.00	$196.68
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$126.00	$73.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	1,117	420	$95.00	$42.09
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	577	122	$390.00	$304.90
90970 Dialysis services, per day, less than full month service (20 years or older)	440	31	$13.00	$8.37
99213 Established patient office or other outpatient visit, typically 15 minutes	303	132	$112.00	$76.84
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	171	107	$121.00	$78.45
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	162	136	$150.00	$111.73
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	132	64	$325.00	$255.94
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	101	100	$195.00	$147.10
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	52	52	$162.00	$114.01
90935 Hemodialysis procedure with physician evaluation	46	37	$153.00	$78.77
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	40	38	$95.00	$45.67
99221 Initial hospital inpatient care per day, typically 30 minutes	40	38	$142.00	$108.60
90962 Dialysis services, 1 physician visit per month (20 years or older)	20	19	$275.00	$198.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	490	195	$95.00	$38.07
90970 Dialysis services, per day, less than full month service (20 years or older)	291	23	$13.00	$7.53
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	212	118	$390.00	$273.49
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	101	57	$121.00	$70.03
99213 Established patient office or other outpatient visit, typically 15 minutes	86	65	$112.00	$69.72
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	71	61	$150.00	$101.20
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	61	48	$325.00	$230.09
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	57	57	$162.00	$103.01
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	46	44	$195.00	$132.70
90935 Hemodialysis procedure with physician evaluation	39	28	$153.00	$70.32
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$142.00	$98.16

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MI 4301 098 223

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

Southern Texas Nephrology Pllc

1080 E Los Ebanos Blvd, Brownsville, TX 785209988

Phone: 9565423472

South Texas Kidney Specialists, P.a.

1901 S 1st St, Mcallen, TX 785031228

Phone: 9566316136

Practice Associates & Co-Workers

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

13 Associated Practitioners

Dr. Steffi Sathiyaraj , MD

Internal Medicine - Nephrology

NPI 1225590904

Doctor of Medicine (M.D.)

Ana Ortega , PA-C

Physician Assistant

NPI 1255968525

Physician Assistant (Certified)

Dr. Mark Liong , MD

Internal Medicine - Nephrology

NPI 1346422078

Doctor of Medicine (M.D.)

Dr. Ricardo Baltodano , MD

Internal Medicine - Nephrology

NPI 1376705244

Doctor of Medicine (M.D.)

Dr. Juan Guardia , MD

Internal Medicine - Nephrology

NPI 1407855224

Doctor of Medicine (M.D.)

Jesus Gonzalez , PA

Physician Assistant

NPI 1538424445

Physician Assistant

Career & Practice History Timeline

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

11 Historical Events

✅

NPI Profile Active July 21, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location July 21, 2017

Registered at 1901 S 1ST ST STE 600, MCALLEN, TX 785031228 (Tel: 9566316136)

📍

Updated Business Mailing Address July 21, 2017

Registered at 1901 S 1ST ST STE 600, MCALLEN, TX 785031228 (Tel: (956) 631-6136)

👤

Provider Name / Credentials Updated July 21, 2017

Recorded as JOHN MANLLO DIECK, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 21, 2017

Internal Medicine (License #4301 098 223 in MI)

✅

NPI Profile Active June 30, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location June 30, 2014

Registered at 1830 E MONUMENT ST, 4TH FLOOR, SUITE 416, BALTIMORE, MD 212870020 (Tel: 4109555268)

📍

Updated Business Mailing Address June 30, 2014

Registered at 1830 E MONUMENT ST, 4TH FLOOR, SUITE 416, BALTIMORE, MD 212870020 (Tel: 4109555268)

👤

Provider Name / Credentials Updated June 30, 2014

Recorded as JOHN MANLLO DIECK, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 30, 2014

Internal Medicine (License #4301 098 223 in MI)

🟢

Initial NPI Registration & Enumeration May 07, 2011

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: 1578855680

Entity Type:

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

Enumeration Date: May 07, 2011

Last Update: July 21, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1901 S 1st St Ste 600

Mcallen, TX 785031228

Phone: 9566316136

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.