NPPES file of Aug 9, 2026

Mary Mathews Rotto, PAC

Obstetrics & Gynecology Physician · Ames, IA

Mary Mathews Rotto, PAC is an obstetrics & gynecology physician with a practice address in Ames, Iowa, and NPI 1417939638, issued on Nov 15, 2005. Check the license (Iowa 00870, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417939638
Name
Mary Mathews Rotto
Credential
PAC
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
00870 IA
Self-reported in NPPES; status is on the state search
Practice location
1015 Duff Ave, Ames, IA 50010
Phone
(515) 239-6970
Enumerated
Nov 15, 2005
Record last updated
Jul 30, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(515) 239-6950
Medicaid ID
0150599 IA
Medicare enrollment
Enrolled (PECOS I20051123000147); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 339 in Iowa → Look up another NPI →

Also registered at 1015 Duff Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jacob Alexander, MDNephrology Physician1558357376
  2. Rami Almokayyad, MDEndocrinology, Diabetes & Metabolism Physician1194929786
  3. Lavanya Amuluru, Md, MDNephrology Physician1265588834
  4. Roberta Baldus, PACObstetrics & Gynecology Physician1518967454
  5. Bonnie Beer, M.D.Obstetrics & Gynecology Physician1609863216
  6. Gregory Brandenberg, MD, PH.D.Neurological Surgery Physician1487629762

Verify Mary Mathews Rotto in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 00870    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Iowa license search

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23% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

203 Medicare Part D claims for 60 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Mary Rotto203
  2. Specialty average165

Most prescribed

  1. Estradiol43 claims
  2. Alendronate Sodium19 claims
  3. Triamcinolone Acetonide14 claims
  4. Nystatin12 claims
  5. Solifenacin Succinate12 claims
  6. Medroxyprogesterone Acetate11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $350.98

18 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Rotto$350.98
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Doran And Doran PCAmes, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Mathews Rotto among 339 obstetrics & gynecology physician records in Iowa

Mary Mathews Rotto, PAC is one of 339 obstetrics & gynecology physician records with a practice address in Iowa. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 75% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated1992 · median 2006 among the 188 with a school on file
  • Record last updated2013 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Iowa

There are 339 obstetrics & gynecology physician records in Iowa.

All 339 in Iowa → Every provider in Ames → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Roberta Baldus, PACAmes, IA 500101518967454
  2. Bonnie Beer, M.D.Ames, IA 500101609863216
  3. James Downard, M.D.Ames, IA 500101720076243
  4. Joan Grabenstetter, M.D.Ames, IA 500101952399941
  5. Darryl Johnson, DOAmes, IA 500101720084916
  6. Joyce Lines, MDAmes, IA 500101649270588
  7. Beth Soulli, DOAmes, IA 500101255621512
  8. Jack Swanson, DO, PH.DAmes, IA 500101467445007

Common questions

What is Mary Mathews Rotto, PAC's NPI number?

Mary Mathews Rotto, PAC's National Provider Identifier (NPI) is 1417939638, issued on Nov 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mary Mathews Rotto, PAC located?

The NPPES record lists a practice address at 1015 Duff Ave, Ames, IA, 50010. Phone: (515) 239-6970. Providers update this record themselves, so call before visiting.

How can I verify Mary Mathews Rotto, PAC's license?

NPPES lists Iowa license number 00870, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mary Mathews Rotto, PAC prescribe under Medicare Part D?

In 2024, Mary Mathews Rotto, PAC had 203 Medicare Part D claims for 60 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.