NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1649241001 DO
Verify on CMS → Linda Bullock, DO
Internal Medicine Physician in Penn Valley, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine Physician, 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
5K
Medicare Part D claims · 530 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$415.66
21 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Linda Bullock, DO filed 4,778 Medicare Part D claims in 2023 as an Internal Medicine Physician in Penn Valley, Pennsylvania, prescribing 91% generic.
- 5K
- Part D claims, 2023
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥93rd
- 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.
CMS NPPES provider registry desk
NPI 1649241001 · Internal Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1649241001
- ENUM-LEGACY 2006
- TAX-MEGA 173K Internal Medicine
- RX-MID 4,778
- BOOK-MID 8,542 in Pennsylvania
- PHOTO-ENUM William Anderson · 2006
Linda Bullock, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,778 ≥ 93rd percentile 93% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Linda Bullock, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Linda Bullock, DO?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
4,778 76% vs specialty avg
Specialty distribution in Pennsylvania
How Internal Medicine Physician compares to other specialties among Pennsylvania 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 Internal Medicine Physician. 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 | 1649241001 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 02/01/2006 |
Hospital and facility affiliations
Facilities where Linda Bullock, DO bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Karen Gardner DO PLLC
Bryn Mawr, PA
Value IN Prevention OF Pennsylvania LLC
Furlong, PA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Linda Bullock, DO. Source: openpaymentsdata.cms.gov.
Total received
$416
Largest payer
Lilly USA, LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Linda Bullock, DO. To verify Linda Bullock, DO's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Linda Bullock, DO - brand share 8.0%
Internal Medicine Physician average
8% brand-name claims vs 91% generic, on 4,778 2023 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 2023.
4,778
Total Claims
$294K
Total Drug Cost
530
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,262
- Total Day Supply
- 330,582
- Brand vs Generic
- 8% brand / 91% generic
- Brand Drug Cost
- $198K
- Generic Drug Cost
- $95K
- Opioid Claims
- 14 (0.3% rate)
- Antibiotic Claims
- 106
Patient Demographics
- Average Patient Age
- 75.0 years
- Avg HCC Risk Score
- 0.95
- Gender Split
- 97% female / 3% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Linda Bullock, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
479 claims
- Amlodipine Besylate
Amlodipine Besylate
312 claims
- Atorvastatin Calcium
Atorvastatin Calcium
299 claims
- Levothyroxine Sodium
Levothyroxine Sodium
256 claims
- Hydrochlorothiazide 173
Hydrochlorothiazide
173 claims
- Metformin Hcl 157
Metformin Hcl
157 claims
- Losartan Potassium 144
Losartan Potassium
144 claims
- Omeprazole 119
Omeprazole
119 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 479 |
| Amlodipine Besylate | 312 |
| Atorvastatin Calcium | 299 |
| Levothyroxine Sodium | 256 |
| Hydrochlorothiazide | 173 |
| Metformin Hcl | 157 |
| Losartan Potassium | 144 |
| Omeprazole | 119 |
| Lorazepam | 117 |
| Ozempic Semaglutide | 107 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Linda Bullock, DO fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Linda Bullock, DO's 4,778 claims are above the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Bullock, both outside Pennsylvania 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 Internal Medicine Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Bullock.
One of 8,542 Internal Medicine Physician providers enrolled in Pennsylvania, 5 are shown here.
Dr. Erin Aakhus
M.D.
Philadelphia, PA
Dr. Muhammad Aamir
MD
Allentown, PA
Dr. Saira Aamir
MD
York, PA
Dr. John Aaron
MD
West Grove, PA
Dr. Todd Aaron
MD
Philadelphia, PA
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Linda Bullock, DO's specialty? ▼
Linda Bullock, DO specializes in Internal Medicine Physician and practices in Penn Valley, Pennsylvania. Credentials: DO.
How much does Linda Bullock, DO prescribe under Medicare Part D? ▼
In 2023, Linda Bullock, DO wrote 4,778 Medicare Part D claims totaling $294K in drug costs for 530 beneficiaries.
Where is Linda Bullock, DO located? ▼
Linda Bullock, DO is located at 915 MONTGOMERY AVE, Penn Valley, PA, 19072. Phone: (610) 668-7992.
What is Linda Bullock, DO's NPI number? ▼
Linda Bullock, DO's National Provider Identifier (NPI) is 1649241001, issued on 02/01/2006.
Does Linda Bullock, DO prescribe more brand-name or generic drugs? ▼
Linda Bullock, DO's prescribing is 8% brand-name and 91% generic drugs by claim count, with $198K in brand drug costs.
Does Linda Bullock, DO prescribe opioids? ▼
Yes, Linda Bullock, DO had 14 opioid claims in 2023 with an opioid prescribing rate of 0.3%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Linda Bullock, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Linda Bullock, DO's most frequently prescribed drugs include Rosuvastatin Calcium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Linda Bullock, DO accept Medicare? ▼
Linda Bullock, DO appears in CMS Medicare data with 4,778 Part D claims and 530 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Linda Bullock, DO's credentials? ▼
Linda Bullock, DO's NPI is 1649241001 with credentials DO. 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 (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
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 May 2026.