NPI registry status
Active
2026 NPPES data Adult Psychiatric/Mental Health Clinical Nurse Specialist NPI 1073531422 PMH-NP, PH.D.
Verify on CMS → Rowena Tessmann, PMH-NP, PH.D.
Adult Psychiatric/Mental Health Clinical Nurse Specialist in Waterville, Maine.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 960 in Adult Psychiatric/Mental Health Clinical Nurse Specialist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 77 beneficiaries · Adult Psychiatric/Mental Health Clinical Nurse Specialist avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Rowena Tessmann, PMH-NP, PH.D. filed 1,756 Medicare Part D claims in 2024 as an Adult Psychiatric/Mental Health Clinical Nurse Specialist in Waterville, Maine, prescribing 96% generic.
- 2K
- Part D claims, 2024
- 96%
- generic prescribing
- ≥82nd
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Rowena Tessmann, PMH-NP, PH.D.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1073531422), first enumerated 07/17/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,756 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1073531422 · Adult Psychiatric/Mental Health Clinical Nurse Specialist
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1073531422
- ENUM-LEGACY 2006
- TAX-NARROW 960
- RX-MID 1,756
- BOOK-THIN 11 in Maine
- PHOTO-ENUM Anne Baylock, ADV PR… · 2006
Rowena Tessmann, PMH-NP, PH.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,756 ≥ 82nd percentile 82% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Rowena Tessmann, PMH-NP, PH.D.?
Quality data not reportedPrimary specialty
Adult Psychiatric/Mental Health Clinical Nurse Specialist
Medicare Part D claims
1,756 46% vs specialty avg
Specialty distribution in Maine
How Adult Psychiatric/Mental Health Clinical Nurse Specialist compares to other specialties among Maine providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Adult Psychiatric/Mental Health Clinical Nurse Specialist. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1073531422 |
|---|---|
| Specialty | Adult Psychiatric/Mental Health Clinical Nurse Specialist |
| Credentials | PMH-NP, PH.D. |
| Gender | Female |
| NPI Issued | 07/17/2006 |
Brand vs generic prescribing mix · Generic-heavy
Rowena Tessmann, PMH-NP, PH.D. - brand share 4.0%
Adult Psychiatric/Mental Health Clinical Nurse Specialist average
4% brand-name claims vs 96% generic, on 1,756 2024 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 2024.
1,756
Total Claims
$173K
Total Drug Cost
77
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,024.967
- Total Day Supply
- 89,335
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $108K
- Generic Drug Cost
- $65K
Patient Demographics
- Average Patient Age
- 40.6 years
- Avg HCC Risk Score
- 0.66
- Gender Split
- 31% female / 69% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Rowena Tessmann, PMH-NP, PH.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Risperidone
Risperidone
155 claims
- Quetiapine Fumarate
Quetiapine Fumarate
132 claims
- Lorazepam
Lorazepam
124 claims
- Clonidine Hcl
Clonidine Hcl
110 claims
- Benztropine Mesylate
Benztropine Mesylate
72 claims
- Olanzapine
Olanzapine
68 claims
- Divalproex Sodium Er
Divalproex Sodium Er
66 claims
- Trazodone Hcl
Trazodone Hcl
62 claims
| Drug | Claims |
|---|---|
| Risperidone | 155 |
| Quetiapine Fumarate | 132 |
| Lorazepam | 124 |
| Clonidine Hcl | 110 |
| Benztropine Mesylate | 72 |
| Olanzapine | 68 |
| Divalproex Sodium Er Divalproex Sodium | 66 |
| Trazodone Hcl | 62 |
| Sertraline Hcl | 61 |
| Fluoxetine Hcl | 53 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Adult Psychiatric/Mental Health Clinical Nurse Specialist in ME →
All providers in Maine →
Compare specialties →
Adult Psychiatric/Mental Health Clinical Nurse Specialist Overview
How Rowena Tessmann, PMH-NP, PH.D. fits within the Adult Psychiatric/Mental Health Clinical Nurse Specialist landscape nationally.
960
Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in US
51
States with Adult Psychiatric/Mental Health Clinical Nurse Specialist
1,206
Avg Claims per Provider
Rowena Tessmann, PMH-NP, PH.D.'s 1,756 claims are above the specialty average of 1,206.
Nationwide Adult Psychiatric/Mental Health Clinical Nurse Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Tessmann, both outside Maine so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as Tessmann.
One of 11 Adult Psychiatric/Mental Health Clinical Nurse Specialist providers enrolled in Maine, 5 are shown here.
Frequently Asked Questions
What is Rowena Tessmann, PMH-NP, PH.D.'s specialty? ▼
Rowena Tessmann, PMH-NP, PH.D. specializes in Adult Psychiatric/Mental Health Clinical Nurse Specialist and practices in Waterville, Maine. Credentials: PMH-NP, PH.D..
How much does Rowena Tessmann, PMH-NP, PH.D. prescribe under Medicare Part D? ▼
In 2024, Rowena Tessmann, PMH-NP, PH.D. wrote 1,756 Medicare Part D claims totaling $173K in drug costs for 77 beneficiaries.
Where is Rowena Tessmann, PMH-NP, PH.D. located? ▼
Rowena Tessmann, PMH-NP, PH.D. is located at 58 ELM ST., Waterville, ME, 04901. Phone: (207) 680-2065.
What is Rowena Tessmann, PMH-NP, PH.D.'s NPI number? ▼
Rowena Tessmann, PMH-NP, PH.D.'s National Provider Identifier (NPI) is 1073531422, issued on 07/17/2006.
Does Rowena Tessmann, PMH-NP, PH.D. prescribe more brand-name or generic drugs? ▼
Rowena Tessmann, PMH-NP, PH.D.'s prescribing is 4% brand-name and 96% generic drugs by claim count, with $108K in brand drug costs.
How many Adult Psychiatric/Mental Health Clinical Nurse Specialist providers are there in the US? ▼
There are 960 Adult Psychiatric/Mental Health Clinical Nurse Specialist providers across 51 states in the US. The average Adult Psychiatric/Mental Health Clinical Nurse Specialist provider writes 1,206 Medicare Part D claims per year.
What drugs does Rowena Tessmann, PMH-NP, PH.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Rowena Tessmann, PMH-NP, PH.D.'s most frequently prescribed drugs include Risperidone, Quetiapine Fumarate, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rowena Tessmann, PMH-NP, PH.D. accept Medicare? ▼
Rowena Tessmann, PMH-NP, PH.D. appears in CMS Medicare data with 1,756 Part D claims and 77 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rowena Tessmann, PMH-NP, PH.D.'s credentials? ▼
Rowena Tessmann, PMH-NP, PH.D.'s NPI is 1073531422 with credentials PMH-NP, PH.D.. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.