2026 NPPES data Adult Health Nurse Practitioner NPI 1568771723 R.N, APN, NPC
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INGRID TATHAM, R.N, APN, NPC

Adult Health Nurse Practitioner in PALATINE, Illinois. 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
64
Medicare Part D claims · 18 beneficiaries · Adult Health Nurse Practitioner avg: 1K

What the federal data shows

INGRID TATHAM, R.N, APN, NPC filed 64 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in PALATINE, Illinois.

64
Part D claims, 2023

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.

INGRID TATHAM, R.N, APN, NPC's Medicare Part D volume vs every U.S. prescriber

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

64 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 INGRID TATHAM, R.N, APN, NPC?

Quality data not reported

NPI registry status

Active

Issued 10/05/2010

NPI 1568771723

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

64 95% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

Specialty distribution in Illinois

How Adult Health Nurse Practitioner compares to other specialties among Illinois providers

Illinois providers

Adult Health Nurse Practitioner share within Illinois

1. Adult Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Health Nurse Practitioner share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Adult Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adult Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Health Nurse Practitioner) — 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).

INGRID TATHAM, R.N, APN, NPC appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding R.N, APN, NPC credentials at 909 E PALATINE RD, PALATINE, IL, 60074, with a listed phone of (847) 776-1400. NPI 1568771723 was issued on 10/05/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TATHAM 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 64 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $1K in drug spend. 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.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 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

909 E PALATINE RD
PALATINE, IL 60074

Provider Details

NPI 1568771723
Specialty Adult Health Nurse Practitioner
Credentials R.N, APN, NPC
Gender Female
NPI Issued 10/05/2010

License & disciplinary context — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to INGRID TATHAM, R.N, APN, NPC. To verify INGRID TATHAM, R.N, APN, NPC's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

64
Total Claims
$1K
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
64
Total Day Supply
1,494
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
2.82

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lactulose
11

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

Adult Health Nurse Practitioner Overview

How INGRID TATHAM, R.N, APN, NPC fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

INGRID TATHAM, R.N, APN, NPC's 64 claims are below the specialty average of 1,201.

Nearby Adult Health Nurse Practitioner Providers in Illinois

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

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is INGRID TATHAM, R.N, APN, NPC's specialty?
INGRID TATHAM, R.N, APN, NPC specializes in Adult Health Nurse Practitioner and practices in PALATINE, Illinois. Credentials: R.N, APN, NPC.
How much does INGRID TATHAM, R.N, APN, NPC prescribe under Medicare Part D?
In 2023, INGRID TATHAM, R.N, APN, NPC wrote 64 Medicare Part D claims totaling $1K in drug costs for 18 beneficiaries.
Where is INGRID TATHAM, R.N, APN, NPC located?
INGRID TATHAM, R.N, APN, NPC is located at 909 E PALATINE RD, PALATINE, IL, 60074. Phone: (847) 776-1400.
What is INGRID TATHAM, R.N, APN, NPC's NPI number?
INGRID TATHAM, R.N, APN, NPC's National Provider Identifier (NPI) is 1568771723, issued on 10/05/2010.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does INGRID TATHAM, R.N, APN, NPC prescribe most often?
Based on 2023 Medicare Part D data, INGRID TATHAM, R.N, APN, NPC's most frequently prescribed drugs include Lactulose. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does INGRID TATHAM, R.N, APN, NPC accept Medicare?
INGRID TATHAM, R.N, APN, NPC appears in CMS Medicare data with 64 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify INGRID TATHAM, R.N, APN, NPC's credentials?
INGRID TATHAM, R.N, APN, NPC's NPI is 1568771723 with credentials R.N, APN, NPC. 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