JOHN MANLLO DIECK M.D.
NPI 1578855680
Internal Medicine in Mcallen, TX

Active since May 07, 2011PECOS EnrolledAccepts Medicare Assignment
1901 S 1ST ST STE 600, MCALLEN, TX 78503(956) 631-6136(956) 631-1848 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 21, 2022, Jul 21, 2017 (2 updates tracked since 2017).

About John Manllo Dieck M.d. NPPES

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

JOHN MANLLO DIECK M.D. (NPI 1578855680) is an individual internal medicine provider in Mcallen, Texas, licensed in Michigan (4301 098 223) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS, is affiliated with South Texas Health System, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1578855680
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJOHN MANLLO DIECKCredential: M.D.
Location Address1901 S 1ST ST STE 600Mcallen, TX 78503-1228
Mailing Address1901 S 1st St Ste 600Mcallen, TX 78503-1228 · (956) 631-6136 · Fax (956) 631-1848
Fax(956) 631-1848
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateMay 7, 2011
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
NPI 1578855680 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MI · 4301 098 223
Definition
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.
1901 S 1ST ST STE 600, Mcallen, TX 78503

Accepted 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

John Manllo Dieck M.d. 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 ID42442766
PECOS Enrollment IDI20170712003164
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 8

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
312 services123 patients
Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
180 services49 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.
154 services86 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
115 services71 patients
Dialysis services, 2-3 physician visits per month (20 years or older) 90961
Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.
78 services27 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
56 services52 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

South Texas Health System

Acute Care Hospitals · Edinburg, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450119
Location1102 W Trenton RoadEdinburg, TX 78539 · Hidalgo County
Emergency services Birthing friendly

Knapp Medical Center

Acute Care Hospitals · Weslaco, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450128
Location1401 East Eight StreetWeslaco, TX 78596 · Hidalgo County
Emergency services Birthing friendly

Valley Regional Medical Center

Acute Care Hospitals · Brownsville, TX
2/5 CMS rating
OwnershipProprietary
CMS Certification Number450662
Location100 A Alton GloorBrownsville, TX 78526 · Cameron County
Emergency services Birthing friendly

Rio Grande Regional Hospital

Acute Care Hospitals · Mcallen, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450711
Location101 E Ridge RdMcallen, TX 78503 · Hidalgo County
Emergency services Birthing friendly

Doctors Hosptal At Renaissance

Acute Care Hospitals · Edinburg, TX
3/5 CMS rating
OwnershipPhysician
CMS Certification Number450869
Location5501 South MccollEdinburg, TX 78539 · Hidalgo County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Reported Quality Measures

Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
93%215 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
100%100 patients5/55-star benchmark: 100%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
99%211 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
8%211 patients1/55-star benchmark: 79%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 7

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

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
5 suppliers30 claims2,205 services$0.30 avg. paid by Medicare
Prednisone, immediate release or delayed release, oral, 1 mg J7512
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers13 claims2,550 services$0.01 avg. paid by Medicare
Cyclosporine, oral, 25 mg J7515
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers23 claims4,140 services$0.58 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers11 claims1,320 services$0.20 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
4 suppliers19 claims3,240 services$0.93 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
9 suppliers50 claims50 services$18.56 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 6

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

Internal Medicine (Nephrology)
1901 S 1ST ST STE 600
MCALLEN, TX 78503
Internal Medicine (Nephrology)
1901 S 1ST ST STE 600
MCALLEN, TX 78503
Internal Medicine (Nephrology)
1901 S 1ST ST STE 600
MCALLEN, TX 78503
Specialist
1901 S 1ST ST STE 600
MCALLEN, TX 78503
Internal Medicine (Nephrology)
1901 S 1ST ST STE 600
MCALLEN, TX 78503
Nurse Practitioner (Family)
1901 S 1ST ST STE 600
MCALLEN, TX 78503

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 John Manllo Dieck's NPI number?

The NPI number for John Manllo Dieck is 1578855680. It was assigned to this individual provider in the NPPES registry on May 7, 2011.

Where is John Manllo Dieck located?

John Manllo Dieck practices at 1901 S 1st St Ste 600, Mcallen, TX 78503. The listed phone number is (956) 631-6136.

What is John Manllo Dieck's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Manllo Dieck enrolled in Medicare?

Yes. John Manllo Dieck 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 John Manllo Dieck accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list John Manllo Dieck 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.

Is John Manllo Dieck affiliated with any hospitals?

According to CMS data, John Manllo Dieck is affiliated with South Texas Health System, Knapp Medical Center, Valley Regional Medical Center, Rio Grande Regional Hospital and Doctors Hosptal At Renaissance.

When was this NPI record last updated?

The NPPES record for John Manllo Dieck was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.