2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1891755997 M.D.
Verify on CMS →

NIZAAMUDDEEN TOOFANNY, M.D.

Geriatric Medicine (Internal Medicine) Physician in ROYAL OAK, Michigan. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 130 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

NIZAAMUDDEEN TOOFANNY, M.D. filed 1,434 Medicare Part D claims in 2023 as a Geriatric Medicine (Internal Medicine) Physician in ROYAL OAK, Michigan, prescribing 91% generic.

1K
Part D claims, 2023
91%
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.

NIZAAMUDDEEN TOOFANNY, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,434 Top 20% higher than 80% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

NIZAAMUDDEEN TOOFANNY, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 NIZAAMUDDEEN TOOFANNY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 03/24/2006

NPI 1891755997

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

1,434 68% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Michigan

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Michigan providers

Michigan providers

Geriatric Medicine (Internal Medicine) Physician share within Michigan

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Medicine (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Geriatric Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Medicine (Internal Medicine) Physician) — ABMS / AOA estimate

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).

NIZAAMUDDEEN TOOFANNY, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D. credentials at 3535 W 13 MILE RD, ROYAL OAK, MI, 48073, with a listed phone of (248) 423-3144. NPI 1891755997 was issued on 03/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TOOFANNY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,434 prescription claims written by this provider, covering 130 Medicare beneficiaries and totaling roughly $113K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 3.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

3535 W 13 MILE RD
ROYAL OAK, MI 48073

Provider Details

NPI 1891755997
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 03/24/2006

Hospital and facility affiliations

Facilities where NIZAAMUDDEEN TOOFANNY, 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.

SELECT REHABILITATION, LLC
GLENVIEW, IL

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 — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to NIZAAMUDDEEN TOOFANNY, M.D.. To verify NIZAAMUDDEEN TOOFANNY, M.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

NIZAAMUDDEEN TOOFANNY, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,434 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.

1,434
Total Claims
$113K
Total Drug Cost
130
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,990
Total Day Supply
86,177
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$82K
Generic Drug Cost
$31K
Opioid Claims
55 (3.8% rate)
Antibiotic Claims
54

Patient Demographics

Average Patient Age
79.1 years
Avg HCC Risk Score
1.80
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

What NIZAAMUDDEEN TOOFANNY, 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
73
Omeprazole
65
Losartan Potassium
52
Amlodipine Besylate
44
Lisinopril
44
Levothyroxine Sodium
33
Prednisone
33
Metoprolol Succinate
32
Escitalopram Oxalate
31
Furosemide
31

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

Geriatric Medicine (Internal Medicine) Physician Overview

How NIZAAMUDDEEN TOOFANNY, M.D. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

NIZAAMUDDEEN TOOFANNY, M.D.'s 1,434 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Michigan

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

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

Frequently Asked Questions

What is NIZAAMUDDEEN TOOFANNY, M.D.'s specialty?
NIZAAMUDDEEN TOOFANNY, M.D. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in ROYAL OAK, Michigan. Credentials: M.D..
How much does NIZAAMUDDEEN TOOFANNY, M.D. prescribe under Medicare Part D?
In 2023, NIZAAMUDDEEN TOOFANNY, M.D. wrote 1,434 Medicare Part D claims totaling $113K in drug costs for 130 beneficiaries.
Where is NIZAAMUDDEEN TOOFANNY, M.D. located?
NIZAAMUDDEEN TOOFANNY, M.D. is located at 3535 W 13 MILE RD, ROYAL OAK, MI, 48073. Phone: (248) 423-3144.
What is NIZAAMUDDEEN TOOFANNY, M.D.'s NPI number?
NIZAAMUDDEEN TOOFANNY, M.D.'s National Provider Identifier (NPI) is 1891755997, issued on 03/24/2006.
Does NIZAAMUDDEEN TOOFANNY, M.D. prescribe more brand-name or generic drugs?
NIZAAMUDDEEN TOOFANNY, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $82K in brand drug costs.
Does NIZAAMUDDEEN TOOFANNY, M.D. prescribe opioids?
Yes, NIZAAMUDDEEN TOOFANNY, M.D. had 55 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does NIZAAMUDDEEN TOOFANNY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NIZAAMUDDEEN TOOFANNY, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NIZAAMUDDEEN TOOFANNY, M.D. accept Medicare?
NIZAAMUDDEEN TOOFANNY, M.D. appears in CMS Medicare data with 1,434 Part D claims and 130 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NIZAAMUDDEEN TOOFANNY, M.D.'s credentials?
NIZAAMUDDEEN TOOFANNY, M.D.'s NPI is 1891755997 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

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.
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