2026 NPPES data Adolescent Medicine (Internal Medicine) Physician NPI 1053304816 DO
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RONALD HERTZ, DO

Adolescent Medicine (Internal Medicine) Physician in GROSSE POINTE WOODS, 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
958
Medicare Part D claims · 65 beneficiaries · Adolescent Medicine (Internal Medicine) Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.357/100
▲ 0 pts above national avg 83.1 · [object Object]

What the federal data shows

RONALD HERTZ, DO reported a CMS MIPS final score of 83.357/100 — above the 83.1 national average — and filed 958 Medicare Part D claims in 2023.

83.357/100
MIPS score · +0 vs avg
958
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.

RONALD HERTZ, DO's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

83 42nd percentile higher than 42% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

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

Board certification likely (heuristic — not verified)

RONALD HERTZ, DO 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 RONALD HERTZ, DO?

Near national average

NPI registry status

Active

Issued 08/26/2005

NPI 1053304816

Primary specialty

Adolescent Medicine (Internal Medicine) Physician

Rare

377 US NPIs in this specialty

Medicare Part D claims

958 70% vs specialty avg

2023 prescription claims

Specialty avg: 3,242

MIPS final score

83.357/100 0.257000000000005% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Michigan

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

Michigan providers

Adolescent Medicine (Internal Medicine) Physician share within Michigan

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

Medicare quality performance — MIPS

RONALD HERTZ, DO's 2023 MIPS final score plotted against the Adolescent Medicine (Internal Medicine) Physician national average

Near national average
MIPS Final Score
83.357/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Adolescent Medicine (Internal Medicine) Physician) — 83.357/100 vs national avg 83.1

0%100%National avg83%83.4%
MIPS final score (Adolescent Medicine (Internal Medicine) Physician) — 83.357/100 vs national avg 83.1

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).

RONALD HERTZ, DO appears in the CMS NPPES registry as a Adolescent Medicine (Internal Medicine) Physician provider holding DO credentials at 19251 MACK AVE, GROSSE POINTE WOODS, MI, 48236, with a listed phone of (313) 343-3749. NPI 1053304816 was issued on 08/26/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HERTZ 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 958 prescription claims written by this provider, covering 65 Medicare beneficiaries and totaling roughly $82K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 7.0%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.357/100 for the 2023 performance year (Quality 68.0602, Cost 60.6155), compared with the national average of 83.1.

Adolescent Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 377 enrolled providers across 46 states and an average of 3,242 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

19251 MACK AVE
GROSSE POINTE WOODS, MI 48236

Provider Details

NPI 1053304816
Specialty Adolescent Medicine (Internal Medicine) Physician
Credentials DO
Gender Male
NPI Issued 08/26/2005

CMS Quality Score (MIPS)

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

83.357
Final Score
Avg: 83.1
68.0602
Quality
60.6155
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where RONALD HERTZ, DO 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.

HENRY FORD HEALTH ST JOHN HOSPITAL
★☆☆☆☆ 1/5
GROSSE POINTE WOODS, MI
Acute Care Hospitals
CMS CCN: 230165

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 RONALD HERTZ, DO. To verify RONALD HERTZ, DO'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

RONALD HERTZ, DO — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 958 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.

958
Total Claims
$82K
Total Drug Cost
65
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,164
Total Day Supply
63,776
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$62K
Generic Drug Cost
$19K
Opioid Claims
67 (7.0% rate)

Patient Demographics

Average Patient Age
69.6 years
Avg HCC Risk Score
1.48
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

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

What RONALD HERTZ, DO 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
95
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
47
Metformin Hcl
43
Amlodipine Besylate
40
Lisinopril
34
Nifedipine Er
Nifedipine
27
Sertraline Hcl
27
Metoprolol Succinate
21
Clopidogrel
Clopidogrel Bisulfate
19
Fluticasone Propionate
19

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

Adolescent Medicine (Internal Medicine) Physician Overview

How RONALD HERTZ, DO fits within the Adolescent Medicine (Internal Medicine) Physician landscape nationally.

377
Adolescent Medicine (Internal Medicine) Physician Providers in US
46
States with Adolescent Medicine (Internal Medicine) Physician
3,242
Avg Claims per Provider

RONALD HERTZ, DO's 958 claims are below the specialty average of 3,242.

Nearby Adolescent 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 HERTZ.

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

Frequently Asked Questions

What is RONALD HERTZ, DO's specialty?
RONALD HERTZ, DO specializes in Adolescent Medicine (Internal Medicine) Physician and practices in GROSSE POINTE WOODS, Michigan. Credentials: DO.
How much does RONALD HERTZ, DO prescribe under Medicare Part D?
In 2023, RONALD HERTZ, DO wrote 958 Medicare Part D claims totaling $82K in drug costs for 65 beneficiaries.
What is RONALD HERTZ, DO's Medicare quality score?
RONALD HERTZ, DO has a CMS MIPS Final Score of 83.357/100 (Quality: 68.0602, Cost: 60.6155). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is RONALD HERTZ, DO located?
RONALD HERTZ, DO is located at 19251 MACK AVE, GROSSE POINTE WOODS, MI, 48236. Phone: (313) 343-3749.
What is RONALD HERTZ, DO's NPI number?
RONALD HERTZ, DO's National Provider Identifier (NPI) is 1053304816, issued on 08/26/2005.
Does RONALD HERTZ, DO prescribe more brand-name or generic drugs?
RONALD HERTZ, DO's prescribing is 9% brand-name and 91% generic drugs by claim count, with $62K in brand drug costs.
Does RONALD HERTZ, DO prescribe opioids?
Yes, RONALD HERTZ, DO had 67 opioid claims in 2023 with an opioid prescribing rate of 7.0%.
How many Adolescent Medicine (Internal Medicine) Physician providers are there in the US?
There are 377 Adolescent Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Adolescent Medicine (Internal Medicine) Physician provider writes 3,242 Medicare Part D claims per year.
What drugs does RONALD HERTZ, DO prescribe most often?
Based on 2023 Medicare Part D data, RONALD HERTZ, DO's most frequently prescribed drugs include Atorvastatin Calcium, Hydrocodone-Acetaminophen, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RONALD HERTZ, DO accept Medicare?
RONALD HERTZ, DO appears in CMS Medicare data with 958 Part D claims and 65 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RONALD HERTZ, DO's credentials?
RONALD HERTZ, DO's NPI is 1053304816 with credentials DO. 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.
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