What is Macy Dieleman's NPI number?

Macy Dieleman's National Provider Identifier (NPI) is 1891148151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Macy Dieleman's specialty?

Macy Dieleman is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).

Where is Macy Dieleman located?

Macy Dieleman's practice location on file with NPPES is 718 Story St, Boone, IA 50036-2834.

What is Macy Dieleman's phone number?

The practice phone number listed in the NPPES registry for Macy Dieleman is (515) 432-2020.

Does Macy Dieleman accept Medicare?

Macy Dieleman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Macy Dieleman's NPI active?

Yes — Macy Dieleman's NPI (1891148151) is active in the NPPES registry as of the last update on 2020-12-28.

IndividualActiveAccepts Medicare

Macy Dieleman, O.D.

NPI 1891148151 · Optometrist · Boone, IA

Macy Dieleman, O.D. is a Optometrist provider in Boone, IA (NPI 1891148151).

Provider details

NPI number: 1891148151
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: O.D.
Sex: Female
Sole proprietor: Yes
License: 083098 (IA)

Practice location

718 Story St

Boone, IA 50036-2834

Phone: (515) 432-2020

Fax: (515) 432-8482

Street-level locationGet directions

More IA providers

Mailing address

1215 Duff Ave

Ames, IA 50010-5469

Specialties & taxonomies

OptometristPrimary152W00000XLicense 083098 (IA)
Eye and Vision Services Providers

Additional practice locations (1)

718 Story St
Boone, IA 50036
Phone: (515) 432-2020
Fax: (515) 432-8482

Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(61/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
10 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
93 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Complete Exam of Visual System92014	46	$116
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	19	$84
New Patient Complete Exam of Visual System92004	14	$138
Photography of the Retina92250	14	$34

Typical Medicare-allowed amounts for these services range $34–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)
Latanoprost	40
Timolol Maleate	15

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$176 across 5 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2016-07-21
Last updated: 2020-12-28
Certified: 2020-12-28

Frequently asked questions

What is Macy Dieleman's NPI number?: Macy Dieleman's National Provider Identifier (NPI) is 1891148151, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Macy Dieleman's specialty?: Macy Dieleman is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
Where is Macy Dieleman located?: Macy Dieleman's practice location on file with NPPES is 718 Story St, Boone, IA 50036-2834.
What is Macy Dieleman's phone number?: The practice phone number listed in the NPPES registry for Macy Dieleman is (515) 432-2020.
Does Macy Dieleman accept Medicare?: Macy Dieleman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Macy Dieleman's NPI active?: Yes — Macy Dieleman's NPI (1891148151) is active in the NPPES registry as of the last update on 2020-12-28.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Complete Exam of Visual System92014	46	$116
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	19	$84
New Patient Complete Exam of Visual System92004	14	$138
Photography of the Retina92250	14	$34

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)
Latanoprost	40
Timolol Maleate	15

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$176 across 5 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments