Dr. Maneeb Nmn Mellem , MD
Internal Medicine • Sherman, TX
600 N Highland Ave, Ste 101
Sherman, TX 750925601
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Maneeb Mellem is listed in NPPES under Internal Medicine.
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NPI assigned on August 23, 2005; this date does not establish years in practice.
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Published CMS data list 1,614 Original Medicare Part B services in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Published rows only; this is not a quality measure.
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Published Part B service records, 2019:
- 99214 — Established patient outpatient office visit: 452 service units.
- 99213 — Established patient outpatient office visit: 256 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 233 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2018 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2019). CPT notice
See all 18 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 769 Medicare Part D prescriptions, including refills, in 2020.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020. Published rows only; this is not a quality measure.
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Published Part D records, 2020:
- Atorvastatin Calcium — 81 prescription fills, including refills.
- Levothyroxine Sodium — 57 prescription fills, including refills.
- Amlodipine Besylate — 55 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 31 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 3,480 in 2017 to 1,614 in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2019.
Practice Location & Contact Primary Location
600 N Highland Ave
Ste 101
Sherman, TX 750925601
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
460 people with Original Medicare in 2019
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2019.
Medicare-allowed amount
About $137,701 in 2019
The total amount Medicare approved for these services in 2019. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019.
Paid by Medicare
About $97,461 in 2019
The part of the Medicare-allowed amount that Medicare itself paid in 2019, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019.
30-day fills
1,513 standardized 30-day fills in 2020
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$18,324 in 2020
The total cost of these prescriptions in 2020, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020.
Open Payments general payments, program year 2019
All general payments: $90.77 across 6 records.
By nature of payment
- Food and Beverage: $90.77 across 6 records.
Reporting-company totals (3 largest of 4)
- Amgen Inc.: $47.15 across 3 records.
- Abbott Laboratories: $17.93 across 1 record.
- Shire North American Group Inc: $14.79 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2019 (published June 30, 2026).
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Compared with the same specialty in Sherman and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Mellem are from 2019.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Mellem are from 2020.
19 active clinicians are listed under Internal Medicine with a practice address in Sherman, TX (9,244 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Sherman
10.5% of these 19 clinicians have the CMS telehealth indicator.
63.2% of these 19 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 54% from 3,480 in 2017 to 1,614 in 2019.
- 2017: 3,480
- 2018: 3,127
- 2019: 1,614
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Medicare-allowed amount
Medicare-allowed amount decreased 44% from $246,053 in 2017 to $137,701 in 2019.
- 2017: $246,053
- 2018: $222,841
- 2019: $137,701
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Paid by Medicare
Paid by Medicare decreased 48% from $185,858 in 2017 to $97,461 in 2019.
- 2017: $185,858
- 2018: $167,546
- 2019: $97,461
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 94% from 13,199 in 2016 to 769 in 2020.
- 2016: 13,199
- 2017: 12,336
- 2018: 12,064
- 2019: 9,784
- 2020: 769
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30-day fills
30-day fills decreased 93% from 22,245 in 2016 to 1,513 in 2020.
- 2016: 22,245
- 2017: 22,066
- 2018: 22,760
- 2019: 19,490
- 2020: 1,513
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Part D drug cost
Part D drug cost decreased 96% from $415,118 in 2016 to $18,324 in 2020.
- 2016: $415,118
- 2017: $421,431
- 2018: $432,255
- 2019: $340,228
- 2020: $18,324
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2019), CMS Medicare Part D Prescribers (2020), CMS Open Payments (2019), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $90.77.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
Proclaim Family of SCS IPGs | General | $17.93 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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Aimovig | General | $16.83 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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Prolia | General | $15.66 |
| Shire North American Group Inc |
Food and Beverage
In-kind items and services
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TRINTELLIX | General | $14.79 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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Aimovig | General | $14.66 |
| BOSTON SCIENTIFIC CORPORATION |
Food and Beverage
In-kind items and services
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SPECTRA WAVEWRITER | General | $10.90 |
Source: CMS Open Payments, program year 2019, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2018 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2019; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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452 | 274 | $106.53 | $104.49 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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256 | 196 | $72.52 | $71.45 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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233 | 233 | $113.72 | $111.59 |
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99497
Advance care planning, first 30 minutes
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178 | 178 | $84.34 | $82.86 |
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G0181
Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow
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90 | 29 | $105.58 | $104.01 |
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20550
Injection into tendon or ligament
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59 | 47 | $52.44 | $50.30 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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55 | 53 | $142.55 | $140.74 |
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96372
Injection of drug or substance under skin or into muscle
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53 | 13 | $23.93 | $16.04 |
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J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
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52 | 15 | $1.79 | $1.63 |
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J0696
Injection, ceftriaxone sodium, per 250 mg
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41 | 11 | $0.68 | $0.58 |
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94060
Test to measure expiratory airflow and volume changes before and after medication administration
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24 | 12 | $28.65 | $28.25 |
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99495
Transitional care management services for problem of at least moderate complexity
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20 | 18 | $160.23 | $157.95 |
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G0179
Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a
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20 | 18 | $40.03 | $39.43 |
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99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
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18 | 17 | $41.56 | $40.29 |
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G0328
Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous
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18 | 18 | $24.81 | $16.71 |
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99496
Transitional care management services for problem of high complexity
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17 | 16 | $226.20 | $222.82 |
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G0180
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
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17 | 17 | $52.17 | $51.26 |
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93010
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
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11 | 11 | $8.44 | $8.32 |
Source: CMS Part B by Provider and Service, 2019; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2020.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 81 | 4,950 | $920.35 | 39 |
| Levothyroxine Sodium | Levothyroxine Sodium | 57 | 3,791 | $1,090.59 | 31 |
| Amlodipine Besylate | Amlodipine Besylate | 55 | 3,870 | $250.01 | 31 |
| Glipizide | Glipizide | 36 | 1,980 | $282.81 | 11 |
| Lisinopril | Lisinopril | 35 | 2,070 | $217.56 | 18 |
| Furosemide | Furosemide | 34 | 1,980 | $298.86 | 15 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 34 | 2,400 | $245.96 | 17 |
| Simvastatin | Simvastatin | 32 | 2,460 | $226.33 | 21 |
| Metoprolol Succinate | Metoprolol Succinate | 30 | 1,620 | $736.42 | 14 |
| Pantoprazole Sodium | Pantoprazole Sodium | 30 | 1,020 | $164.67 | — |
| Metformin Hcl | Metformin Hcl | 26 | 1,800 | $200.43 | 15 |
| Gabapentin | Gabapentin | 24 | 1,500 | $725.99 | 12 |
| Allopurinol | Allopurinol | 24 | 1,116 | $262.26 | — |
| Potassium Chloride | Potassium Chloride | 24 | 1,452 | $807.54 | 13 |
| Citalopram Hbr | Citalopram Hydrobromide | 22 | 900 | $75.88 | — |
| Breo Ellipta | Fluticasone/Vilanterol | 21 | 630 | $8,090.41 | — |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 20 | 1,526 | $1,023.02 | 13 |
| Metoprolol Tartrate | Metoprolol Tartrate | 17 | 870 | $73.99 | — |
| Atenolol | Atenolol | 17 | 1,350 | $195.40 | — |
| Alprazolam | Alprazolam | 15 | 447 | $55.98 | — |
| Omeprazole | Omeprazole | 15 | 990 | $131.72 | 11 |
| Bisoprolol Fumarate | Bisoprolol Fumarate | 15 | 990 | $508.94 | — |
| Losartan Potassium | Losartan Potassium | 13 | 930 | $184.89 | — |
| Duloxetine Hcl | Duloxetine Hcl | 13 | 630 | $282.01 | — |
| Carvedilol | Carvedilol | 12 | 660 | $96.87 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2020; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated August 23, 2005.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to November 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Sherman
- Dr. Dale Davies, MD
- Dr. Kruti Patel, DO
- Dr. Ahmad Maher, MD
- Dr. Mohammad Khalil, MD
- Dr. Ebere Okeke, MD
- Dr. Ronak Patel, MD
Mailing Address
600 N Highland Ave, Ste 101
Sherman, TX 750925601
Phone: 9038928112