2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1033102132 M.D.
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MANUEL CHAVARRI, M.D.

Endocrinology, Diabetes & Metabolism Physician in ALPENA, 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
6K
Medicare Part D claims · 495 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MANUEL CHAVARRI, M.D. filed 5,840 Medicare Part D claims in 2023 as a Endocrinology, Diabetes & Metabolism Physician in ALPENA, Michigan, prescribing 71% generic.

6K
Part D claims, 2023
71%
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.

MANUEL CHAVARRI, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

5,840 Top 5% higher than 95% 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

Board-eligible specialty (heuristic — not verified)

MANUEL CHAVARRI, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MANUEL CHAVARRI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 08/24/2005

NPI 1033102132

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

5,840 121% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

Specialty distribution in Michigan

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Michigan providers

Michigan providers

Endocrinology, Diabetes & Metabolism Physician share within Michigan

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Endocrinology, Diabetes & Metabolism Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Endocrinology, Diabetes & Metabolism Physician ABMS/AOA estimate

Est. board-certified rate (Endocrinology, Diabetes & Metabolism Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endocrinology, Diabetes & Metabolism 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).

MANUEL CHAVARRI, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 346 LONG RAPIDS PLZ, ALPENA, MI, 49707, with a listed phone of (989) 358-3500. NPI 1033102132 was issued on 08/24/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAVARRI 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 5,840 prescription claims written by this provider, covering 495 Medicare beneficiaries and totaling roughly $1.6 million in drug spend, split 29% brand-name and 71% generic by claim count, with an opioid prescribing rate of 1.2%. 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.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

346 LONG RAPIDS PLZ
ALPENA, MI 49707

Provider Details

NPI 1033102132
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Male
NPI Issued 08/24/2005

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 MANUEL CHAVARRI, M.D.. To verify MANUEL CHAVARRI, 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 · Above average

MANUEL CHAVARRI, M.D. — brand share 29.0%
Specialty average (est.)

29% brand-name claims vs 71% generic, on 5,840 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.

5,840
Total Claims
$1.6M
Total Drug Cost
495
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13,663
Total Day Supply
404,640
Brand vs Generic
29% brand / 71% generic
Brand Drug Cost
$1.5M
Generic Drug Cost
$106K
Opioid Claims
69 (1.2% rate)
Antibiotic Claims
29

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
1.43
Gender Split
59% female / 41% male
Age Distribution
<65: 111, 65-74: 201, 75-84: 140, 85+: 43

Top Prescribed Drugs (Medicare Part D)

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

What MANUEL CHAVARRI, 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
Levothyroxine Sodium
614
Atorvastatin Calcium
191
Metformin Hcl Er
Metformin Hcl
181
Metformin Hcl
158
Lisinopril
134
Rosuvastatin Calcium
125
Hydrochlorothiazide
122
Losartan Potassium
122
Trulicity
Dulaglutide
120
Jardiance
Empagliflozin
95

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

Endocrinology, Diabetes & Metabolism Physician Overview

How MANUEL CHAVARRI, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

MANUEL CHAVARRI, M.D.'s 5,840 claims are above the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Michigan

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MANUEL CHAVARRI, M.D.'s specialty?
MANUEL CHAVARRI, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in ALPENA, Michigan. Credentials: M.D..
How much does MANUEL CHAVARRI, M.D. prescribe under Medicare Part D?
In 2023, MANUEL CHAVARRI, M.D. wrote 5,840 Medicare Part D claims totaling $1.6M in drug costs for 495 beneficiaries.
Where is MANUEL CHAVARRI, M.D. located?
MANUEL CHAVARRI, M.D. is located at 346 LONG RAPIDS PLZ, ALPENA, MI, 49707. Phone: (989) 358-3500.
What is MANUEL CHAVARRI, M.D.'s NPI number?
MANUEL CHAVARRI, M.D.'s National Provider Identifier (NPI) is 1033102132, issued on 08/24/2005.
Does MANUEL CHAVARRI, M.D. prescribe more brand-name or generic drugs?
MANUEL CHAVARRI, M.D.'s prescribing is 29% brand-name and 71% generic drugs by claim count, with $1.5M in brand drug costs.
Does MANUEL CHAVARRI, M.D. prescribe opioids?
Yes, MANUEL CHAVARRI, M.D. had 69 opioid claims in 2023 with an opioid prescribing rate of 1.2%.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does MANUEL CHAVARRI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MANUEL CHAVARRI, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MANUEL CHAVARRI, M.D. accept Medicare?
MANUEL CHAVARRI, M.D. appears in CMS Medicare data with 5,840 Part D claims and 495 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MANUEL CHAVARRI, M.D.'s credentials?
MANUEL CHAVARRI, M.D.'s NPI is 1033102132 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