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2026 NPPES data Internal Medicine Physician NPI 1588625735 M.D.
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Sankararao Tamtam, M.D.

Internal Medicine Physician in New Braunfels, Texas.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
6K
Medicare Part D claims · 487 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.2/100
▲ 9 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Sankararao Tamtam, M.D. reported a CMS MIPS final score of 92.2/100 - above the 83.5 national average - and filed 6,158 Medicare Part D claims in 2023.

92.2/100
MIPS score · +9 vs avg
6K
Part D claims, 2023
86%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

CMS NPPES provider registry desk

NPI 1588625735 · Internal Medicine Physician

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-ABOVE · RX-MID · BOOK-MID · PHOTO-FINISH

  • NPI-10 1588625735
  • ENUM-LEGACY 2006
  • TAX-MEGA 173K Internal Medicine
  • MIPS-ABOVE 92.2/100
  • RX-MID 6,158
  • BOOK-MID 10,926 in Texas
  • PHOTO-FINISH Hoang Nguyen · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Sankararao Tamtam, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

92 ≥ 66th percentile 66% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Sankararao Tamtam, M.D. sits

This provider among internal medicine physician peers

Across the 34,612 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Sankararao Tamtam, M.D. writes more Part D claims than 85% of them and scores higher on MIPS quality than 66% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 33Sankararao Tamtam, M.D., Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 66
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Sankararao Tamtam, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Sankararao Tamtam, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Sankararao Tamtam, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 03/29/2006

NPI 1588625735

Primary specialty

Internal Medicine Physician

High-volume

172,737 US NPIs in this specialty

Medicare Part D claims

6,158 127% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

92.2/100 8.7 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Texas

How Internal Medicine Physician compares to other specialties among Texas providers

Texas providers
Behavior Technician5.6%Student in an Organized Heal…5.1%Family Nurse Practitioner4.5%Professional Counselor4.4%Pharmacist4.4%Speech-Language Pathologist3.9%Internal Medicine Physician2.6%
Largest specialties in Texas (% of in-state providers)

Medicare quality performance, MIPS

Sankararao Tamtam, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
92.2/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%92.2%
MIPS final score (Internal Medicine Physician) - 92.2/100 vs national avg 83.5
How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Practice Address

1770 STATE HIGHWAY 46 W STE 1201
New Braunfels, TX 78132
(830) 730-4125

Provider Details

NPI 1588625735
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 03/29/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

92.1659
Final Score
Measured-score avg: 83.5
78.1161
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Sankararao Tamtam, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Pak Medical Group PLLC
New Braunfels, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context - Texas TMB 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Sankararao Tamtam, M.D.. To verify Sankararao Tamtam, M.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Sankararao Tamtam, M.D. - brand share 13.0%
Internal Medicine Physician average

13% brand-name claims vs 86% generic, on 6,158 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

6,158
Total Claims
$707K
Total Drug Cost
487
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,840
Total Day Supply
374,142
Brand vs Generic
13% brand / 86% generic
Brand Drug Cost
$583K
Generic Drug Cost
$120K
Opioid Claims
227 (3.7% rate)
Antibiotic Claims
143

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.36
Gender Split
59% female / 41% male
Age Distribution
<65: 56, 65-74: 225, 75-84: 145, 85+: 61

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Sankararao Tamtam, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
 363
Losartan Potassium
 257
Levothyroxine Sodium
 230
Gabapentin
 203
Amlodipine Besylate
 165
Metformin Hcl
 138
Omeprazole
 130
Lisinopril
 128
Albuterol Sulfate Hfa
Albuterol Sulfate
113
Alprazolam
 107

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Internal Medicine Physician in TX → All providers in Texas → Compare specialties →

Internal Medicine Physician Overview

How Sankararao Tamtam, M.D. fits within the Internal Medicine Physician landscape nationally.

172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Sankararao Tamtam, M.D.'s 6,158 claims are above the specialty average of 2,716.

Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Tamtam, both outside Texas so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (92.2 here).

Sulagshan Mahendrarajah 92.2 OR Hoang Nguyen 92.2 OR Hassan Kaleem 92.1 OK Knotresha Stewart 92.1 VA

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Tu Depry Fresno, CA Manar Hanna Eatontown, NJ Craig Winkler Springfield, OR Kent Smith Roosevelt, UT

Nearby Internal Medicine Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Tamtam.

One of 10,926 Internal Medicine Physician providers enrolled in Texas, 5 are shown here.

Dr. Muhammad A. Sattar
MD
Dallas, TX
Anunaya Aashish
Denton, TX
Dr. Queenie Ann Abad
M.D.
San Antonio, TX
Dr. Fuad Abaleka
M.D
Lubbock, TX
Dr. Carol Abalihi
M.D.
El Paso, TX

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Sankararao Tamtam, M.D.'s specialty? ▼
Sankararao Tamtam, M.D. specializes in Internal Medicine Physician and practices in New Braunfels, Texas. Credentials: M.D..
How much does Sankararao Tamtam, M.D. prescribe under Medicare Part D? ▼
In 2023, Sankararao Tamtam, M.D. wrote 6,158 Medicare Part D claims totaling $707K in drug costs for 487 beneficiaries.
What is Sankararao Tamtam, M.D.'s Medicare quality score? ▼
Sankararao Tamtam, M.D. has a CMS MIPS Final Score of 92.2/100 (Quality: 78.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sankararao Tamtam, M.D. located? ▼
Sankararao Tamtam, M.D. is located at 1770 STATE HIGHWAY 46 W STE 1201, New Braunfels, TX, 78132. Phone: (830) 730-4125.
What is Sankararao Tamtam, M.D.'s NPI number? ▼
Sankararao Tamtam, M.D.'s National Provider Identifier (NPI) is 1588625735, issued on 03/29/2006.
Does Sankararao Tamtam, M.D. prescribe more brand-name or generic drugs? ▼
Sankararao Tamtam, M.D.'s prescribing is 13% brand-name and 86% generic drugs by claim count, with $583K in brand drug costs.
Does Sankararao Tamtam, M.D. prescribe opioids? ▼
Yes, Sankararao Tamtam, M.D. had 227 opioid claims in 2023 with an opioid prescribing rate of 3.7%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Sankararao Tamtam, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Sankararao Tamtam, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sankararao Tamtam, M.D. accept Medicare? ▼
Sankararao Tamtam, M.D. appears in CMS Medicare data with 6,158 Part D claims and 487 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sankararao Tamtam, M.D.'s credentials? ▼
Sankararao Tamtam, M.D.'s NPI is 1588625735 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.