2026 NPPES data Specialist NPI 1528008810 M.D.
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TIMOTHY SESI, M.D.

Specialist in PONTIAC, 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
2K
Medicare Part D claims · 278 beneficiaries · Specialist avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

TIMOTHY SESI, M.D. filed 2,009 Medicare Part D claims in 2023 as a Specialist in PONTIAC, Michigan, prescribing 96% generic.

2K
Part D claims, 2023
96%
generic prescribing

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.

TIMOTHY SESI, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

2,009 Top 16% higher than 84% 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%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

What does the federal data show about TIMOTHY SESI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/07/2006

NPI 1528008810

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

2,009 36% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Michigan

How Specialist compares to other specialties among Michigan providers

Michigan providers

Specialist share within Michigan

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Specialist ABMS/AOA estimate

Est. board-certified rate (Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Specialist) — 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).

TIMOTHY SESI, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 44555 WOODWARD AVE, PONTIAC, MI, 48341, with a listed phone of (248) 858-3949. NPI 1528008810 was issued on 06/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SESI 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 2,009 prescription claims written by this provider, covering 278 Medicare beneficiaries and totaling roughly $72K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 28.3%. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

44555 WOODWARD AVE
PONTIAC, MI 48341

Provider Details

NPI 1528008810
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 06/07/2006

Hospital and facility affiliations

Facilities where TIMOTHY SESI, 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.

OAKLAND PHYSIATRY, P.C
PONTIAC, MI

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 TIMOTHY SESI, M.D.. To verify TIMOTHY SESI, 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

TIMOTHY SESI, M.D. — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 2,009 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.

2,009
Total Claims
$72K
Total Drug Cost
278
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,208
Total Day Supply
62,467
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$34K
Generic Drug Cost
$38K
Opioid Claims
568 (28.3% rate)

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
2.01
Gender Split
46% female / 54% male
Age Distribution
<65: 42, 65-74: 91, 75-84: 97, 85+: 48

Top Prescribed Drugs (Medicare Part D)

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

What TIMOTHY SESI, 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
347
Gabapentin
166
Baclofen
144
Tramadol Hcl
99
Tizanidine Hcl
87
Pregabalin
78
Atorvastatin Calcium
71
Pantoprazole Sodium
70
Oxycodone Hcl
49
Metoprolol Succinate
38

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

Specialist Overview

How TIMOTHY SESI, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

TIMOTHY SESI, M.D.'s 2,009 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Michigan

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is TIMOTHY SESI, M.D.'s specialty?
TIMOTHY SESI, M.D. specializes in Specialist and practices in PONTIAC, Michigan. Credentials: M.D..
How much does TIMOTHY SESI, M.D. prescribe under Medicare Part D?
In 2023, TIMOTHY SESI, M.D. wrote 2,009 Medicare Part D claims totaling $72K in drug costs for 278 beneficiaries.
Where is TIMOTHY SESI, M.D. located?
TIMOTHY SESI, M.D. is located at 44555 WOODWARD AVE, PONTIAC, MI, 48341. Phone: (248) 858-3949.
What is TIMOTHY SESI, M.D.'s NPI number?
TIMOTHY SESI, M.D.'s National Provider Identifier (NPI) is 1528008810, issued on 06/07/2006.
Does TIMOTHY SESI, M.D. prescribe more brand-name or generic drugs?
TIMOTHY SESI, M.D.'s prescribing is 4% brand-name and 96% generic drugs by claim count, with $34K in brand drug costs.
Does TIMOTHY SESI, M.D. prescribe opioids?
Yes, TIMOTHY SESI, M.D. had 568 opioid claims in 2023 with an opioid prescribing rate of 28.3%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does TIMOTHY SESI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, TIMOTHY SESI, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Gabapentin, Baclofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TIMOTHY SESI, M.D. accept Medicare?
TIMOTHY SESI, M.D. appears in CMS Medicare data with 2,009 Part D claims and 278 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIMOTHY SESI, M.D.'s credentials?
TIMOTHY SESI, M.D.'s NPI is 1528008810 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