Perinatal Clinical Nurse Specialist

Compiled from official public sources by the editorial process. · Updated August 2026

NUCC 364SP1700X · Clinical Nurse Specialist

29 CMS NPPES-registered providers across 16 states · 619th of 690 specialties by headcount.

Providers

CMS NPPES-registered

States

with ≥1 NPI

California

Top state

8 providers

$93

Open Pay avg

522nd of 551 specialties

Where this specialty sits in the corpus

Perinatal Clinical Nurse Specialist ranks 619th of 690 NUCC specialties by CMS NPPES headcount (0% of all registered NPIs), densest in California; per resident California leads.

29
NPPES providers in specialty: 619th
of 690 specialties: 1249
state-share HHI: 6.9%
Part D prescriber share

California is densest per capita (2.4× the national rate); 0.3% of the Clinical Nurse Specialist category.

Taxonomy fingerprint

Perinatal Clinical Nurse Specialist (NUCC 364SP1700X; 6.9% Part D prescribers (2 of 29); avg 13 Part D claims/prescriber (568th of 572); Open Payments avg $93/physician (522nd of 551; 6 paid, $560 total); state-share HHI 1,249; next-larger headcount neighbor Human Factors Physical Therapist (+1); next-smaller Community Psychiatric/Mental Health Clinical Nurse Specialist (-1)).

Next larger: Human Factors Physical Therapist (30) Next smaller: Community Psychiatric/Mental Health Clinical Nurse Specialist (28)

Which states have the most providers?

#	State	Providers	% of specialty
1	California	8	27.6%
2	Illinois	4	13.8%
3	Ohio	3	10.3%
4	Florida	2	6.9%
5	Alaska	1	3.4%
6	Georgia	1	3.4%
7	Indiana	1	3.4%
8	Maryland	1	3.4%

Sample Perinatal Clinical Nurse Specialist NPIs

A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.

#	Provider	State
1	Annette Lynch, MSN, CNSCleveland, OH	Ohio
2	Laura Dranguet, MSN, RN-C, CNSAustin, TX	Texas
3	Andrea Merkler, APN, CDEOak Lawn, IL	Illinois
4	Maryann Baird, RNC, CNSFresno, CA	California
5	Connie Lopez, RNC, MSN, CNSOakland, CA	California
6	Deborah Reitter, RN, MSN, CNSSacramento, CA	California
7	Maryam Soroudi, NPMission Hills, CA	California
8	Jodie Franzen, CNSDuncan, OK	Oklahoma
9	Lisa Dreyer, MSN, RNC, CNSFairfield, OH	Ohio
10	Joann Elie, NPAtlanta, GA	Georgia
11	Lillian Coleman, CRNPReading, PA	Pennsylvania
12	Katherine Thomas, RNNewburgh, IN	Indiana

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Frequently Asked Questions

Why is Perinatal Clinical Nurse Specialist a thin NUCC code in NPPES?

Only 29 NPIs list Perinatal Clinical Nurse Specialist as primary taxonomy across 16 states (peak California, 8). That is 619th of 690 NUCC codes by headcount. Thin codes are still searchable by NPI; do not treat the low count as a quality signal.

Do the few Perinatal Clinical Nurse Specialist NPIs in Open Payments look unusual?

CMS Open Payments 2024 lists 6 paid Perinatal Clinical Nurse Specialist physicians totaling $560 (17 payments; average $93, 522nd of 551 by average). Presence is not a quality judgment; thin specialties often have sparse payment rows.

How much Part D prescribing does this specialty do?

Among Perinatal Clinical Nurse Specialist NPIs, 2 appear in the Medicare Part D Prescriber PUF (average 13 claims and $922 drug cost per prescriber; 568th of 572 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.

Data sources and methodology

Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Part D averages from the CMS Medicare Part D Prescriber PUF; industry payments from CMS Open Payments 2024. Counts reflect self-designated primary taxonomy at NPI enrollment. PlainDoctor does not rate or rank providers. Methodology · About

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-27.